I heard the bells from the future churches, the children playing and laughing in the schoolyards [...] and here was an almond tree in bloom before me: I must reach out and cut a flowering branch. For, by believing passionately in something which still does not exist, we create it. The nonexistent is whatever we have not sufficiently desired, whatever we have not irrigated with our blood to such a degree that it becomes strong enough to stride across the somber threshold of nonexistence.
"Report to Greco". Book by Nikos Kazantzakis, 1965.