[504] A phenomenon accompanied by equanimity (upekkhāsahagato dhammo) is a condition for a phenomenon accompanied by equanimity by predominance condition (adhipati-paccaya): object-predominance (ārammaṇādhipati), conascence-predominance (sahajātādhipati). … (Abbreviated.)
Conascence-predominance: predominance accompanied by equanimity is a condition for the associated aggregates (sampayuttakā khandhā) by predominance condition.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.