[859] "Furthermore, Ānanda, when a bhikkhu has tasted a flavor with the tongue, there arises what is agreeable, there arises what is disagreeable, there arises what is both agreeable and disagreeable. He understands thus: 'There has arisen in me this agreeable, there has arisen this disagreeable, there has arisen this both agreeable and disagreeable. But that is conditioned (saṅkhata), coarse, dependently arisen; this is peaceful, this is sublime, namely, equanimity (upekkhā).' In him that arisen agreeable, that arisen disagreeable, that arisen both agreeable and disagreeable ceases, and equanimity becomes established. Just as, Ānanda, a strong man, having gathered a ball of spittle on the tip of his tongue, might spit it out without difficulty, even so, Ānanda, in whomever the arisen agreeable, the arisen disagreeable, the arisen both agreeable and disagreeable ceases thus quickly, thus swiftly, thus without difficulty, and equanimity becomes established — this, Ānanda, is called, in the discipline of the Noble One, the supreme development of the faculties (indriyabhāvanā) regarding flavors cognizable by the tongue."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.