Black Elk

And if the great fear had not come upon me, as it did, and forced me to do my duty, I might have been less good to the people than some man who had never dreamed at all, even with the memory of so great a vision in me.

I looked about me once again, and suddenly the dancing horses without number changed into animals of every kind and into all the fowls that are, and these fled back to the four quarters of the world from whence the horses came, and vanished.