There is a fine line between dreams and reality, it's up to you to draw it.

But I, being poor, have only my dreams;
I have spread my dreams under your feet;
Tread softly because you tread on my dreams."

(Aedh Wishes for the Cloths of Heaven)

Learn from your dreams what you lack.

I bring you with reverent hands
The books of my numberless dreams.

In dreams begin responsibilities.

One loses, as one grows older, something of the lightness of one's dreams; one begins to take life up in both hands, and to care more for the fruit than the flower, and that is no great loss perhaps.