[538] How does one develop serenity (samatha) and insight (vipassanā) yoked together (yuganaddha)? One develops serenity and insight yoked together in sixteen modes: in the sense of object (ārammaṇa), in the sense of domain (gocara), in the sense of abandoning (pahāna), in the sense of relinquishment (pariccāga), in the sense of emergence (vuṭṭhāna), in the sense of turning away (vivaṭṭana), in the sense of the peaceful (santa), in the sense of the sublime (paṇīta), in the sense of liberation (vimutta), in the sense of being without taints (āsava), in the sense of crossing over (taraṇa), in the sense of the signless (animitta), in the sense of the wishless (appaṇihita), in the sense of emptiness (suññata), in the sense of single function (ekarasa), in the sense of not overrunning one another (anativattana), and in the sense of being yoked together (yuganaddha).
How does one develop serenity and insight yoked together in the sense of object? When one abandons restlessness (uddhacca), concentration (samādhi) — the one-pointedness and non-distraction of the mind (citta) — has cessation as its object; when one abandons ignorance (avijjā), insight, in the sense of contemplation, has cessation as its object. Thus, in the sense of object, serenity and insight have a single function, are yoked together, and do not overrun one another. Therefore it is said: "One develops serenity and insight yoked together in the sense of object."
"Develops": there are four kinds of development (bhāvanā) … development in the sense of repeated practice … "The path is produced": how is the path produced? … Thus the path is produced; thus the fetters are abandoned and the latent tendencies (anusaya) are brought to an end. It is in this way that one develops serenity and insight yoked together in the sense of object.
How does one develop serenity and insight yoked together in the sense of domain? When one abandons restlessness, concentration — the one-pointedness and non-distraction of the mind — has cessation as its domain; when one abandons ignorance, insight, in the sense of contemplation, has cessation as its domain. Thus, in the sense of domain, serenity and insight have a single function, are yoked together, and do not overrun one another. Therefore it is said: "One develops serenity and insight yoked together in the sense of domain."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.