[2228] A phenomenon (dhamma) that is invisible and non-impinging (anidassana-appaṭigha) is a condition, by kamma condition (kamma-paccaya), for a phenomenon that is visible and impinging (sanidassana-sappaṭigha) — conascent (sahajāta) and asynchronous (nānākhaṇika).
Conascent: volition (cetanā) that is invisible and non-impinging is a condition, by kamma condition, for mind-originated forms (cittasamuṭṭhāna-rūpa) that are visible and impinging.
Asynchronous: volition that is invisible and non-impinging is a condition, by kamma condition, for forms born of kamma performed (kaṭattārūpa) that are visible and impinging.
Thus, by this method, the seven questions should be analyzed as conascent and asynchronous. [This is] the threefold grouping of form (tividha-rūpa-saṅgaha).
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.