[622] Which form (rūpa) is internal (ajjhattika), not bodily intimation (na kāyaviññatti)?
The eye sense base (cakkhāyatana) … the body sense base (kāyāyatana) — this is that form which is internal, not bodily intimation.
Which form is external (bāhira), bodily intimation (kāyaviññatti)?
That which, on the part of one whose mind (citta) is wholesome (kusala), or whose mind is unwholesome (akusala), or whose mind is indeterminate (abyākata), who is going forward or returning, looking ahead or looking around, bending or stretching, is the tensing of the body, the firm tensing, the state of being firmly tensed, the intimation, the making known, the state of having been made known — this is that form which is external, bodily intimation.
Which form is external, not bodily intimation?
The form sense base (rūpāyatana) … edible food (kabaḷīkāro āhāro) — this is that form which is external, not bodily intimation.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.