Artists use frauds to make human beings seem more wonderful than they really are. Dancers show us human beings who move much more gracefully than human beings really move. Films and books and plays show us people talking much more entertainingly than people.
For what we call illusions are often, in truth, a wider vision of past and present realities --a willing movement of a man's soul with the larger sweep of the world's forces --a movement towards a more assured end than the chances of a single life.
What difference is there, do you think, between those in Plato's cave who can only marvel at the shadows and images of various objects, provided they are content and don't know what they miss, and the philosopher who has emerged from the cave and sees the real things?
The impression forces itself upon one that men measure by false standards, that everyone seeks power, success, riches for himself, and admires others who attain them, while undervaluing the truly precious thing in life.
People who have realized that this is a dream imagine that it is easy to wake up, and are angry with those who continue sleeping, not considering that the whole world that environs them does not permit them to wake. Life proceeds as a series of optical illusions, artificial needs and imaginary sensations.