Ru-Yi Academy · Course · The Three Marks of Existence

No Core Is Found Here

三法印 — impermanence, suffering, and not-self, examined four different ways
4 sessions · all live No prior course required Taught in English Free · every text on this site

Unroll a banana trunk searching for its heartwood, and you find no sapwood, let alone heartwood — only more layers, all the way through. This course reads four texts built around that same discovery, applied to the five aggregates that make up a person: impermanent, suffering, and without any self to be found inside them, examined first as verse, then as logical argument, then as vivid image, and finally as an honest, unresolved difficulty that doesn't simply disappear once you've understood the argument.

The three marks of existence are among the most frequently stated claims in the entire Pali Canon and among the hardest to actually absorb. This course doesn't try to make that absorption easier than it is — the final session sits directly inside the gap between understanding a teaching and being settled by it.

Not simply true. Verifiable — by verse, by argument, by image, and, honestly, by sitting with the part that doesn't resolve on the first pass.

The promise of this course
Where the texts come from

All four texts are read in full on this site, in Bhikkhu Sujato's complete CC0 translation of the Pali Canon, each with its own structured reading guide, full text, and ten-question self-check quiz. This course adds a single connecting thread across four different discourses; it does not retranslate anything.

What you'll be able to do
  1. Recite the threefold refrain (impermanent, suffering, not-self) and explain the scope shift between the first two marks and the third.
  2. Reconstruct the logical argument that freed the first five monks — a specific, repeatable test, not a bare assertion.
  3. Explain each of the five similes for the five aggregates, and why the set moves from the visibly composite to the actively deceptive.
  4. Distinguish intellectual agreement from settled confidence, using Channa's own honest report rather than pretending the gap doesn't exist.
  5. State, in your own words, why dependent origination's middle way resolves the existence/non-existence anxiety without simply picking a side.
How each session works

Five steps, every session — read the source text itself in full partway through, not as an afterthought.

1
Lecture NotesThe claim, framed
2
Primary TextRead the full text
3
DiscussionFour questions
4
AssignmentApply it once
5
Self-CheckThe text's own quiz
What you'll need
  • Nothing to buy. Every text is on this site in full, in Bhikkhu Sujato's CC0 translation, with its own reading guide and quiz.
  • No prior course required, though The Owner of Your Deeds shares this course's close attention to dependent origination, met again here in Session 4.
  • Willingness to sit with Session 4's unresolved feeling. This course doesn't promise that understanding the argument settles the anxiety — the final session is built around that honest gap.
  • A moment of quiet for Session 3. The five similes reward being pictured slowly, one at a time, rather than read quickly through.
"Every course I've built in this series ends with an assignment asking students to write the thread in their own words. This is the first one where I made sure to include a session that admits the thread might not fully resolve — Channa's honest 'my mind does not settle' is, I think, the most useful sentence in the whole course, because it's the one most students actually feel and rarely hear a teacher say out loud."
— Luke Lin, instructor · Ru-Yi Academy