[598] Which form (rūpa) is internal, not following along with the mind (na cittānuparivatti)? The eye sense base (cakkhāyatana) … the body sense base (kāyāyatana) — this is the form that is internal, not following along with the mind.
Which form is external, following along with the mind (cittānuparivatti)? Bodily intimation (kāyaviññatti), verbal intimation (vacīviññatti) — this is the form that is external, following along with the mind.
Which form is external, not following along with the mind? The form sense base (rūpāyatana) … edible nutriment (kabaḷīkāra āhāra) — this is the form that is external, not following along with the mind.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.