Reading guide
A closely related but distinct process term
"They speak of a 'liability to fall'. What has a liability to fall?" — vaya, often paired with uppāda ("origination") in the standard uppāda-vaya formula describing the rise and fall of phenomena, here given its own dedicated discourse.
The identical bare answer
"Form, feeling, perception, choices, and consciousness have a liability to fall" — matching SN 23.19's own directness exactly.
Why khaya and vaya both receive separate treatment
Though closely related in meaning, treating "liable to end" and "liable to fall" as two distinct discourses rather than folding them into one suggests this vagga's compilers valued exhaustive coverage of related vocabulary over economy — every near-synonym for impermanence's own process gets its own dedicated statement.
Two terms remaining
SN 23.21 and SN 23.22 will complete this closing set with "liable to originate" and "liable to cease" — the positive and negative poles of the same rise-and-fall process this discourse and SN 23.19 have already begun describing.
Key terms
The text
§1At Sāvatthī. Seated to one side, Venerable Rādha said to the Buddha: “Sir, they speak of a ‘liability to fall’. What has a liability to fall?”
§2“Rādha, form, feeling, perception, choices, and consciousness have a liability to fall.
§3Seeing this … They understand: ‘… there is nothing further for this place.’”
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