“Space flights are merely an escape, a fleeing away from oneself, because it is easier to go to Mars or to the moon than it is to penetrate one's own being.”

“What is hell? Hell is oneself. Hell is alone, the other figures in it Merely projections. There is nothing to escape from And nothing to escape to. One is always alone.”

“When we sense something, it is due to the movement of atoms in space. When I see the moon it is because "moon atoms" penetrate my eye.”

“If you don't feel it, flee from it. Go where you are celebrated, not merely tolerated.”

“Spirituality is not to be learned by flight from the world, or by running away from things, or by turning solitary and going apart from the world. Rather, we must learn an inner solitude wherever or with whomsoever we may be. We must learn to penetrate things and find God there.”

“Material things have closed boundaries; they are not accessible, cannot be penetrated, by things outside themselves. But one's existence as a spiritual being involves being and remaining oneself and at the same time admitting and transforming into oneself the reality of the world. No other material thing can be present in the space occupied by a house, a tree, or a fountain pen. But where there is mind, the totality of things has room; it is "possible that in a single being the comprehensiveness of the whole universe may dwell.”