[860] "Furthermore, Ānanda, when a bhikkhu (bhikkhu) touches a tangible (phoṭṭhabba) with the body, there arises the agreeable, there arises the disagreeable, there arises the agreeable-and-disagreeable. He understands thus: 'There has arisen in me this agreeable, there has arisen the disagreeable, there has arisen the agreeable-and-disagreeable; and that is conditioned (saṅkhata), coarse, dependently arisen (paṭiccasamuppanna); this is peaceful, this is sublime, namely, equanimity (upekkhā).' In him that arisen agreeable, that arisen disagreeable, that arisen agreeable-and-disagreeable ceases, and equanimity becomes established. Just as, Ānanda, a strong man might extend his bent arm or bend his extended arm, even so, Ānanda, in whomever the arisen agreeable, the arisen disagreeable, the arisen agreeable-and-disagreeable ceases thus swiftly, thus quickly, 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) with regard to tangibles cognizable by the body."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.