[17] Therein, which perception (saññā) is gross (oḷārikā), which subtle (sukhumā)?
Perception born of impingement contact (paṭighasamphassajā) is gross; perception born of designation contact (adhivacanasamphassajā) is subtle. Unwholesome perception is gross; wholesome and indeterminate (abyākata) perception is subtle. Wholesome and unwholesome perception is gross; indeterminate perception is subtle. Perception associated with painful feeling (vedanā) is gross; perception associated with pleasant and with neither-painful-nor-pleasant feelings is subtle. Perception associated with pleasant and painful feelings is gross; perception associated with neither-painful-nor-pleasant feeling is subtle. The perception of one not in attainment (asamāpanna) is gross; the perception of one in attainment (samāpanna) is subtle. Perception subject to taints (sāsava) is gross; perception free from taints (anāsava) is subtle.
Or alternatively, perception should be seen as gross and subtle relative to this or that perception, case by case.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.