" On the brink of mystery, the spirit of man is seized with giddiness. Mystery is the abyss which ceaselessly attracts our unquiet curiosity by the terror of its depth. The greatest mystery of the infinite is the existence of Him for whom alone all is without mystery. Comprehending the infinite which is essentially incomprehensible, He is Himself that infinite and eternally unfathomable mystery; that is to say, that He is, in all seeming, that supreme absurdity in which Tertullian believed. "
― Éliphas Lévi , The Key of the Mysteries