Udakūpamāsutta
“Sattime, bhikkhave, udakūpamā puggalā santo saṁvijjamānā lokasmiṁ. Katame satta? Idha, bhikkhave, ekacco puggalo sakiṁ nimuggo nimuggova hoti; idha pana, bhikkhave, ekacco puggalo ummujjitvā nimujjati; idha pana, bhikkhave, ekacco puggalo ummujjitvā ṭhito hoti; idha pana, bhikkhave, ekacco puggalo ummujjitvā vipassati viloketi; idha pana, bhikkhave, ekacco puggalo ummujjitvā patarati; idha pana, bhikkhave, ekacco puggalo ummujjitvā patigādhappatto hoti; idha pana, bhikkhave, ekacco puggalo ummujjitvā tiṇṇo hoti pāraṅgato thale tiṭṭhati brāhmaṇo.
A Simile With Water
“Mendicants, these seven individuals found in the world are like those in water. What seven? One individual sinks under once and stays under. One individual rises up then sinks under. One individual rises up then stays put. One individual rises up then sees and discerns. One individual rises up then crosses over. One individual rises up then finds a foothold. One individual has risen up, crossed over, and gone to the far shore, a brahmin who stands on solid ground.