Ayatanas
Ayatanas — the sense bases or sense fields.
These answer the question: how does experience even happen?
There are twelve, in two groups:
Internal bases (6):
eye, ear, nose, tongue, body, mind
External bases (6):
forms (visible objects), sounds, smells, tastes, tactile sensations, mental objects (thoughts, images, memories, concepts)
So: eye + form → visual experience
ear + sound → hearing
mind + mental object → thinking, imagining, remembering
The āyatanas show that experience is not “someone inside looking out,” but just fields meeting fields, conditions meeting conditions. Very Dzogchen-friendly, actually… just display meeting display.