Aṅguttara Nikāya · Discourse 7.67

The Simile of the Citadel

Nagaropamasutta — Mahāvagga — the seventh chapter of the Sevens

Setting
None stated in the source
Speakers
The Buddha alone, addressing the mendicants
Form
An extended, point-by-point simile: a citadel's seven defensive features and four kinds of sustenance, each mapped one-to-one onto a noble disciple's own qualities and attainments
Length
~7 minutes to read
A familiar list, a third time
This discourse's seven qualities — faith, conscience, prudence, learning, energy, mindfulness, wisdom — are the same hiri/ottappa-based list already met at AN 7.25 and AN 7.43, now appearing a third time
Difficulty
★★☆☆☆ — long but mechanically regular, once the citadel-to-disciple mapping is clear

Why this discourse

AN 7.67 builds an extended simile in two matched halves: first a king's frontier citadel, secure against any external foe when it has seven essential defenses and four kinds of sustenance on hand, then a noble disciple, secure against Māra when they have the matching seven qualities and can enter the four absorptions at will.

Reading guide

The teaching in one sentence

A noble disciple who has seven good qualities and can enter the four absorptions whenever they want, without trouble or difficulty, is as secure against Māra as a well-provisioned frontier citadel is against any external enemy.

Seven essentials, and what a citadel needs them for

A citadel is secure when it has a pillar with deep, unshakable foundations; a deep, wide moat; a high, wide patrol path; stores of both projectile and hand-held weapons; many kinds of armed forces; an astute gatekeeper who admits the known and excludes strangers; and a high, wide, plastered wall — seven features working together to defend those within and repel those outside.

Four kinds of sustenance, so a siege cannot starve it out

Beyond structural defense, a secure citadel also keeps four kinds of supplies on hand without trouble: hay, wood, and water; rice and barley; sesame, green gram, and black gram; and medicines such as ghee, oil, honey, and salt — ensuring comfort and endurance regardless of how long a siege might last.

Each citadel feature mapped exactly onto a disciple's quality

The second half of the discourse maps every element one-to-one: faith in the Buddha's awakening as the unshakable pillar; conscience as the moat; prudence as the patrol path; broad learning of the teachings as the weapon stores; energy as the armed forces; mindfulness as the gatekeeper, admitting what belongs and excluding what doesn't; and wisdom into arising and passing away as the wall itself — each quality, like its citadel counterpart, described as what lets a disciple give up the unskillful and develop the skillful.

The four absorptions, mapped onto the four kinds of sustenance

The four kinds of stored supplies map onto the four absorptions in turn, each described as being “for their own enjoyment, relief, and comfort, and for alighting upon extinguishment” — framing meditative absorption not as an escape from the citadel's defensive posture but as the very sustenance that lets a disciple, like a well-provisioned citadel, hold out against anything Māra might attempt.

Key terms

nagaropama — “the simile of the citadel” — this discourse's own title, naming its governing extended image.
esikā — “a pillar” with deep, unshakable foundations — the citadel's first essential, mapped onto a disciple's faith.
saddhā, hirī, ottappaṁ, bahussuta, vīriya, sati, paññā — “faith, conscience, prudence, learning, energy, mindfulness, wisdom” — the seven qualities mapped onto the citadel's seven essentials, the same list already met at AN 7.25 and AN 7.43.
cattāro āhārā — “four kinds of sustenance” — hay/wood/water, rice/barley, sesame/gram, and medicines, mapped onto the four absorptions.
na māravasaṁ gacchati — “cannot be overrun by Māra” — the discourse's own description of a disciple who possesses all seven qualities and all four absorptions at will.

The text

The discourse in full: the citadel's seven essentials and four kinds of sustenance, then the matching disciple's seven qualities and four absorptions. Translation: Bhikkhu Sujato (CC0, SuttaCentral).

A citadel's seven essentials

§1“Mendicants, when a king’s frontier citadel is well provided with seven essentials and gets four kinds of sustenance when needed, without trouble or difficulty, it is then called a king’s frontier citadel that cannot be overrun by external foes and enemies. With what seven essentials is a citadel well provided? Firstly, a citadel has a pillar with deep foundations, firmly embedded, imperturbable and unshakable. This is the first essential with which a king’s frontier citadel is well provided, to defend those within and repel those outside. Furthermore, a citadel has a moat that is deep and wide. This is the second essential … Furthermore, a citadel has a patrol path that is high and wide. This is the third essential … Furthermore, a citadel has stores of many weapons, both projectile and hand-held. This is the fourth essential … Furthermore, many kinds of armed forces reside in a citadel, such as elephant marshals, cavalry, charioteers, archers, bannermen, adjutants, food servers, warrior-chiefs, princes, chargers, great warriors, heroes, leather-clad soldiers, and sons of bondservants. This is the fifth essential … Furthermore, a citadel has a gatekeeper who is astute, competent, and intelligent. He keeps strangers out and lets known people in. This is the sixth essential … Furthermore, a citadel has a wall that’s high and wide, covered with plaster. This is the seventh essential with which a king’s frontier citadel is well provided, to defend those within and repel those outside. With these seven essentials a citadel is well provided.

A citadel's four kinds of sustenance

§2What are the four kinds of sustenance it gets when needed, without trouble or difficulty? Firstly, a king’s frontier citadel has much hay, wood, and water stored up for the enjoyment, relief, and comfort of those within and to repel those outside. Furthermore, a king’s frontier citadel has much rice and barley stored up for those within. Furthermore, a king’s frontier citadel has much food such as sesame, green gram, and black gram stored up for those within. Furthermore, a king’s frontier citadel has much medicine—ghee, butter, oil, honey, molasses, and salt—stored up for the enjoyment, relief, and comfort of those within and to repel those outside. These are the four kinds of sustenance it gets when needed, without trouble or difficulty.

The same structure, applied to a noble disciple

§3When a king’s frontier citadel is well provided with seven essentials and gets four kinds of sustenance when needed, without trouble or difficulty, it is then called a king’s frontier citadel that cannot be overrun by external foes and enemies. In the same way, when a noble disciple has seven good qualities, and they get the four absorptions—blissful meditations in this life that belong to the higher mind—when they want, without trouble or difficulty, they are then called a noble disciple who cannot be overrun by Māra, who cannot be overrun by the Wicked One. What are the seven good qualities that they possess?

The first four qualities: faith, conscience, prudence, learning

§4Just as a king’s frontier citadel has a pillar with deep foundations, firmly embedded, imperturbable and unshakable, to defend those within and repel those outside, in the same way a noble disciple has faith in the Realized One’s awakening: ‘That Blessed One is perfected, a fully awakened Buddha, accomplished in knowledge and conduct, holy, knower of the world, supreme guide for those fit for training, teacher of gods and humans, awakened, blessed.’ A noble disciple with faith as their pillar gives up the unskillful and develops the skillful, they give up the blameworthy and develop the blameless, and they keep themselves pure. This is the first good quality they have. Just as a citadel has a moat that is deep and wide, in the same way a noble disciple has a conscience. They’re conscientious about bad conduct by way of body, speech, and mind, and conscientious about having any bad, unskillful qualities. A noble disciple with a conscience as their moat gives up the unskillful and develops the skillful, they give up the blameworthy and develop the blameless, and they keep themselves pure. This is the second good quality they have. Just as a citadel has a patrol path that is high and wide, in the same way a noble disciple is prudent. They’re prudent when it comes to bad conduct by way of body, speech, and mind, and prudent when it comes to acquiring any bad, unskillful qualities. A noble disciple with prudence as their patrol path gives up the unskillful and develops the skillful, they give up the blameworthy and develop the blameless, and they keep themselves pure. This is the third good quality they have. Just as a citadel has stores of many weapons, both projectile and hand-held, in the same way a noble disciple is very learned. They remember and keep what they’ve learned. These teachings are good in the beginning, good in the middle, and good in the end, meaningful and well-phrased, describing a spiritual practice that’s entirely full and pure. They are very learned in such teachings, remembering them, reciting them, mentally scrutinizing them, and penetrating them theoretically. A noble disciple with learning as their weapon gives up the unskillful and develops the skillful, they give up the blameworthy and develop the blameless, and they keep themselves pure. This is the fourth good quality they have.

The fifth through seventh: energy, mindfulness, wisdom

§5Just as many kinds of armed forces reside in a citadel … in the same way a noble disciple is energetic. They live with energy roused up for giving up unskillful qualities and embracing skillful qualities. They are strong, staunchly vigorous, not slacking off when it comes to developing skillful qualities. A noble disciple with energy as their armed forces gives up the unskillful and develops the skillful, they give up the blameworthy and develop the blameless, and they keep themselves pure. This is the fifth good quality they have. Just as a citadel has a gatekeeper who is astute, competent, and intelligent, who keeps strangers out and lets known people in, in the same way a noble disciple is mindful. They have utmost mindfulness and alertness, and can remember and recall what was said and done long ago. A noble disciple with mindfulness as their gatekeeper gives up the unskillful and develops the skillful, they give up the blameworthy and develop the blameless, and they keep themselves pure. This is the sixth good quality they have. Just as a citadel has a wall that’s high and wide, covered with plaster, to defend those within and repel those outside, in the same way a noble disciple is wise. They have the wisdom of arising and passing away which is noble, penetrative, and leads to the complete ending of suffering. A noble disciple with wisdom as their wall gives up the unskillful and develops the skillful, they give up the blameworthy and develop the blameless, and they keep themselves pure. This is the seventh good quality they have. These are the seven good qualities that they possess.

The four absorptions, mapped to the four kinds of sustenance

§6And what are the four absorptions—blissful meditations in this life that belong to the higher mind—that they get when they want, without trouble or difficulty? Just as a king’s frontier citadel has much hay, wood, and water stored up for the enjoyment, relief, and comfort of those within and to repel those outside, in the same way a noble disciple, quite secluded from sensual pleasures, secluded from unskillful qualities, enters and remains in the first absorption, which has the rapture and bliss born of seclusion, while placing the mind and keeping it connected. This is for their own enjoyment, relief, and comfort, and for alighting upon extinguishment. Just as a king’s frontier citadel has much rice and barley stored up, in the same way, as the placing of the mind and keeping it connected are stilled, a noble disciple enters and remains in the second absorption, which has the rapture and bliss born of immersion, with internal clarity and mind at one, without placing the mind and keeping it connected. This is for their own enjoyment, relief, and comfort, and for alighting upon extinguishment. Just as a king’s frontier citadel has much food such as sesame, green gram, and black gram stored up, in the same way with the fading away of rapture, a noble disciple enters and remains in the third absorption, where they meditate with equanimity, mindful and aware, personally experiencing the bliss of which the noble ones declare, ‘Equanimous and mindful, one meditates in bliss.’ This is for their own enjoyment, relief, and comfort, and for alighting upon extinguishment. Just as a king’s frontier citadel has much medicine—ghee, butter, oil, honey, molasses, and salt—stored up for the enjoyment, relief, and comfort of those within and to repel those outside, in the same way, with the giving up of pleasure and pain and the disappearance of former happiness and sadness, a noble disciple enters and remains in the fourth absorption, without pleasure or pain, with pure equanimity and mindfulness. This is for their own enjoyment, relief, and comfort, and for alighting upon extinguishment. These are the four absorptions—blissful meditations in this life that belong to the higher mind—which they get when they want, without trouble or difficulty.

Closing

§7When a noble disciple has seven good qualities, and they get the four absorptions—blissful meditations in this life that belong to the higher mind—when they want, without trouble or difficulty, they are then called a noble disciple who cannot be overrun by Māra, who cannot be overrun by the Wicked One.”

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Self-check quiz

6 questions. Click an answer to see immediate feedback. No score is recorded — this is for your own checking.

Question 1 of 6
What makes a king's frontier citadel unable to be overrun, according to this discourse?
Correct: B. Structural defenses plus reliable supply, working together.
Question 2 of 6
What does the pillar with deep, unshakable foundations map onto in the disciple half of this simile?
Correct: B. The first essential, mapped onto the first of seven qualities.
Question 3 of 6
According to the guide, how many times has this exact seven-quality list (faith, conscience, prudence, learning, energy, mindfulness, wisdom) now appeared in this book?
Correct: B. The hiri/ottappa-based version, distinct from AN 7.60's sīlavā/pavivitta variant.
Question 4 of 6
What does mindfulness map onto in the citadel simile?
Correct: B. A gatekeeping function, distinguishing what should and shouldn't be let in.
Question 5 of 6
What do the four kinds of sustenance map onto in the disciple half of the simile?
Correct: B. Meditative absorption framed as sustaining supply, not escape from defense.
Question 6 of 6
What is a disciple who has all seven qualities and all four absorptions at will called, according to this discourse?
Correct: B. The discourse's closing description, mirroring the citadel's own security against external foes.
Answered 0 of 6 · Correct 0