Nachman of Breslov

“ And then when one wakes up from sleep, he sees that all these times and the seventy years which passed in his sleep are really a very short period. And this is because afterwards, when awake, then his intellect returns to him, and in the intellect, all these seventy years that transpired in the dream are just a quarter-hour for him. ”

“ Except, an actual seventy years are also considered seventy years at our intellect; but in truth, at a higher intellect above our intellect, what is considered seventy real years by us is also only a quarter-hour or less. For, as we can see, that a person can pass seventy years in a dream, and in truth we know afterwards in our intellect that it is but a quarter hour — just the same way, that which is considered seventy real years by our intellect is, at a higher, loftier intellect, only a quarter hour. ”

“ And therefore Hashem Yithbarakh will say to him, "Today I have begotten you" — today, tangibly, as all the time which has transpired is null and zero entirely, as mentioned.
And thus too we see in space, how a strong person can traverse a place in a short time; hence for him all this space is small, while for weak people this place is considered vast and one needs to walk a long time until passing through that place. And thus higher and higher: the greater one's strength, the smaller space is for him. ”