“Abba Doulas, the disciple of Abba Bessarion, said: When we were walking along the sea one day, I was thirsty, so I said to Father, ‘Abba, I am very thirsty’. Then the old man prayed and said to me, ‘Now drink from the sea’. And the water was sweet when I drank it.
So I poured it into a flask so that I would not be thirsty later on. Seeing this, the old man asked me, ‘Why are you doing that?’ And I answered, ‘So that I won’t be thirsty later on’. Then the old man said, ‘God is now and God is ‘later on’.”Wisdom of the Desert Fathers