[599] Which is that form (rūpa) that is internal and gross?
The eye sense base (cakkhāyatana) … the body sense base (kāyāyatana) — this is that form that is internal and gross.
Which is that form that is external and gross?
The form sense base (rūpāyatana) … the tangible sense base (phoṭṭhabbāyatana) — this is that form that is external and gross.
Which is that form that is external and subtle?
The femininity faculty (itthindriya) … edible nutriment (kabaḷīkāro āhāro) — this is that form that is external and subtle.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.