[605] Which is that form (rūpa) that is internal (ajjhattika), not an object (ārammaṇa) of eye-contact (cakkhusamphassa)?
The eye base (cakkhāyatana) … the body base (kāyāyatana) — this is that form that is internal, not an object of eye-contact.
Which is that form that is external (bāhira), an object of eye-contact?
The form base (rūpāyatana) — this is that form that is external, an object of eye-contact.
Which is that form that is external, not an object of eye-contact?
The sound base (saddāyatana) … nutriment consisting of morsels (kabaḷiṅkāra āhāra) — this is that form that is external, not an object of eye-contact.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.