There is nothing strange in this, any more than there is anything strange in an instinct. An instinct is merely a habit that is stamped into the stuff of our heredity, that is all. It will be noted, in passing, that in this falling dream which is so familiar to you and me and all of us, we never strike bottom. To strike bottom would be destruction. Those of our arboreal ancestors who struck bottom died forthwith. True, the shock of their fall was communicated to the cerebral cells, but they died immediately, before they could have progeny. You and I are descended from those that did not strike bottom; that is why you and I, in our dreams, never strike bottom.
And now we come to disassociation of personality. We never have this sense of falling when we are wide awake. Our wake-a-day person
