The Buddha uses a simile of the water at the confluence of great rivers to illustrate the extent of suffering that is exhausted and overcome by a disciple of the noble ones who has attained right view.
Dutiyasambhejjaudaka sutta - The Water at the Confluence (Second)
At Sāvatthi.
"Bhikkhus, suppose that in a place where these great rivers merge and converge — namely the Ganges, the Yamunā, the Aciravatī, the Sarabhū, and the Mahī — the water were to be exhausted and completely dried up, leaving only two or three drops remaining.
What do you think, bhikkhus? Which is greater: the water that has dried up and been exhausted, or the two or three drops that remain?
"Venerable sir, the water at the confluence that has been exhausted and depleted is indeed far greater. The two or three drops of water that remain are very little. Compared to the water that has been exhausted and depleted, the remaining drops do not amount to a hundredth part, nor a thousandth part, nor even a hundred-thousandth part."
"Just so, bhikkhus, for the disciple of the noble ones who has attained right view, who has completely penetrated [the four noble truths], this much greater is the suffering that is exhausted and overcome; only a small amount remains. It does not come to a hundredth part, nor to a thousandth part, nor to a hundred-thousandth part of the former mass of suffering that is exhausted and overcome compared to this final state of having at most seven more existences. Thus great, bhikkhus, is the realization of the Dhamma; thus great is the attainment of the vision of the Dhamma."