[749] Therein, what is equanimity (upekkhā)? That which, towards beings, is equanimity, the act of being equanimous, the state of being equanimous, equanimity as liberation of mind (upekkhā cetovimutti) — this is called equanimity.
Therein, what is mind (citta)? That which is mind, mentality (mano), mentation (mānasa) … the corresponding mind-consciousness element (tajjā manoviññāṇa-dhātu) — this is called mind.
This mind is accompanied by this equanimity, arisen together with it, mingled with it, associated with it; therefore it is said, "with a mind accompanied by equanimity" (upekkhāsahagatena cetasā).
"One direction" (ekaṃ disaṃ): the eastern direction, or the western direction, or the northern direction, or the southern direction, or above, or below, or across, or an intermediate direction.
"Having pervaded" (pharitvā): having pervaded, having resolved upon it.
"Dwells" (viharati): he moves about … dwells; therefore it is said, "dwells."
"Likewise the second" (tathā dutiyaṃ): just as the one direction, likewise the second direction, likewise the third direction, likewise the fourth direction, likewise above, likewise below, likewise across, likewise the intermediate direction.
"Everywhere, to all as to oneself, the all-encompassing world" (sabbadhi sabbattatāya sabbāvantaṃ lokaṃ): this is an expression that takes up all in its entirety, all in every way, without remainder, without residue — "everywhere, to all as to oneself, the all-encompassing world."
"With a mind accompanied by equanimity": therein, what is equanimity? That which, towards beings, is equanimity, the act of being equanimous, the state of being equanimous, equanimity as liberation of mind — this is called equanimity. Therein, what is mind? That which is mind, mentality, mentation … the corresponding mind-consciousness element — this is called mind. This mind is accompanied by this equanimity, arisen together with it, mingled with it, associated with it; therefore it is said, "with a mind accompanied by equanimity."
"Abundant" (vipulena): that which is abundant is exalted (mahaggata); that which is exalted is measureless (appamāṇa); that which is measureless is without enmity (avera); that which is without enmity is without ill will (abyāpajjha).
"Having pervaded": having pervaded, having resolved upon it.
"Dwells": he moves about … dwells; therefore it is said, "dwells."
The Suttanta Analysis (Suttantabhājanīya).
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.