I have occasionally spoken of a light in the soul which is uncreated and uncreatable. . . . This light is not satisfied with the simple, still and divine being which neither gives nor takes, but rather it desires to know from where this being comes. It wants to penetrate to the simple ground, to the still desert, into which distinction never peeped, neither Father, Son nor Holy Spirit. There, in that most inward place, where everyone is a stranger, the light is satisfied, and there it is more inward than it is in itself, for this ground is a simple stillness which is immovable in itself. But all things are moved by this immovability and all the forms of life are conceived by it which, possessing the light of reason, live of themselves.
Meister Eckhart, 1260-1328