Reading guide
The fourth tree, and the series now complete
Confirmed by direct reading, this discourse extends the tree-simile series — human (SN 48.67), Tāvatiṃsa (SN 48.68), asura (SN 48.69) — into a fourth realm, the supaṇṇas, whose finest tree is the kūṭasimbalī, closing the series at four rather than continuing indefinitely.
Kūṭasimbalī: the garuḍas' own nesting tree
As general canonical background, not asserted beyond what this discourse's own bare text states: the “supaṇṇa” (also rendered “garuḍa” or here, “phoenix”) are a class of great mythic birds, and the kūṭasimbalī (Red Silk-Cotton, or Bombax, Tree) is held in the tradition as their own great nesting tree — the finest of their realm, as jambu, Pāricchattaka, and Cittapāṭali were finest of theirs.
The uddāna confirms: exactly ten, a seventh vagga complete
This discourse's own closing colophon (“Bodhipakkhiyavaggo sattamo,” “the seventh Bodhipakkhiyavagga, concluded”) and its own uddāna verse settle, rather than merely suggest, this vagga's own length: “saṁyojanā anusayā, pariññā āsavakkhayā; dve phalā caturo rukkhā” sums to fetters (1) + tendencies (1) + complete understanding (1) + ending of defilements (1) + two fruits (2, bundled as “dve phalā”) + four trees (4, bundled as “caturo rukkhā”) = ten — confirming, for the seventh consecutive vagga this session, the same closing length as every vagga before it.
Key terms
The text
§1“Mendicants, of all the trees belonging to the phoenixes, the Red Silk-Cotton Tree is said to be the best. In the same way, the faculty of wisdom is said to be the best of the qualities on the side of awakening; that is, for becoming awakened. And what are the qualities on the side of awakening? The faculties of faith, energy, mindfulness, immersion, and wisdom are qualities on the side of awakening, in that they lead to awakening. Of all the trees belonging to the phoenixes, the Red Silk-Cotton Tree is said to be the best. In the same way, the faculty of wisdom is said to be the best of the qualities on the side of awakening; that is, for becoming awakened.”
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