I recently picked up a copy of Mysticism: Christian and Buddhist by DT Suzuki. This Meister Eckhart guy is a focus of it and he's fascinating.

While I subsisted in the ground, in the bottom, in the river and fount of Godhead, no one asked me where I was going or what I was doing: there was no one to ask me. When I was flowing all creatures spake God. If I am asked, Brother Eckhart, when went ye out of your house? Then I must have been in. Even so do all creatures speak God. And why do they not speak the Godhead? Everything in the Godhead is one, and of that there is nothing to be said. God works, the Godhead does no work, there is nothing to do; in it is no activity. It never envisaged any work. God and Godhead are as different as active and inactive. On my return to God, where I am formless, my breaking through will be far nobler than my emanation. I alone take all creatures out of their sense into my mind and make them one in me. When I go back into the ground, into the depths, into the well-spring of the Godhead, no one will ask me whence I came or whither I went. No one missed me: God passes away.