[128] Furthermore, great king, with the stilling of applied thought (vitakka) and sustained thought (vicāra), a bhikkhu enters and dwells in the second absorption (jhāna), which has internal serenity and unification of mind (citta), is without applied thought and without sustained thought, and has rapture (pīti) and happiness born of concentration (samādhi). He drenches, steeps, fills, and pervades this very body with the rapture and happiness born of concentration, so that there is no part of his whole body that is unpervaded by the rapture and happiness born of concentration.
Just as, great king, there might be a deep lake whose water wells up from within: it would have no inlet of water from the eastern direction, no inlet of water from the southern direction, no inlet of water from the western direction, no inlet of water from the northern direction, nor would the sky bestow proper showers upon it from time to time; yet the stream of cool water welling up from within that lake would drench, steep, fill, and pervade that very lake with cool water, so that there would be no part of the whole lake that was unpervaded by the cool water — even so, great king, a bhikkhu drenches, steeps, fills, and pervades this very body with the rapture and happiness born of concentration, so that there is no part of his whole body that is unpervaded by the rapture and happiness born of concentration.
This too, great king, is a fruit of the ascetic life visible here and now, more excellent and more sublime than the previous fruits of the ascetic life visible here and now.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.