[627] Which form (rūpa) is internal (ajjhattika), not the malleability of form (rūpassa mudutā)?
The eye sense base (cakkhāyatana) … the body sense base — this form is internal, not the malleability of form.
Which form is external (bāhira), the malleability of form?
That which is the malleability of form, the softness, the non-hardness, the non-rigidity — this form is external, the malleability of form.
Which form is external, not the malleability of form?
The form sense base (rūpāyatana) … edible nutriment (kabaḷīkāro āhāro) — this form is external, not the malleability of form.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.