[472] Bhikkhus, furthermore, with the subsiding of thought (vitakka) and examination (vicāra), a bhikkhu enters upon and dwells in the second jhāna, which has internal confidence and unification of mind (citta), is without thought and without examination, and has rapture (pīti) and pleasure born of concentration (samādhi). He drenches, steeps, fills, and pervades this very body with the rapture and pleasure born of concentration, so that there is no part of his whole body that is unpervaded by the rapture and pleasure born of concentration. Suppose, bhikkhus, there were a deep lake whose waters welled up from below. It would have no inlet for water from the eastern direction, no inlet for water from the western direction, no inlet for water from the northern direction, no inlet for water from the southern direction, nor would the sky pour down proper showers upon it from time to time; but the cool stream of 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 unpervaded by cool water. In just the same way, bhikkhus, a bhikkhu drenches, steeps, fills, and pervades this very body with the rapture and pleasure born of concentration, so that there is no part of his whole body that is unpervaded by the rapture and pleasure born of concentration.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.