"Now observe the use and the fruit of this secret Word and this darkness. The Son of the heavenly Father is not born alone in this darkness, which is his own: you too can be born a child of the same heavenly Father and of none other, and to you too He will give power. Now observe how great the use is! For all the truth learned by all the masters by their own intellect and
understanding, or ever to be learned till Doomsday, they never had the slightest inkling of this knowledge and this ground. Though it may be called an “unknowing,” yet there is in it more than in all knowing and understanding without it, for this unknowing lures and attracts you from all understood things, and from yourself as well. This is what Christ meant when he said, "Whoever will not deny himself and will not leave his father and mother, and is not estranged from all these, is not worthy of me" (Matt. 10:37), as though he were to say, he who does not abandon creaturely externals can be neither conceived nor born in this divine birth. But divesting yourself of yourself and of everything external does truly give it to you.
And in very truth I believe, nay, I am sure, that the one who is established in this cannot in any way ever be separated from God.
-Meister Eckhart, Sermon One (d. 1328)