"...a power in the soul which alone is free... It is free of all names and void of all forms, entirely exempt and free, as God is exempt and free in himself. It is as completely one and simple as God is one and simple, so that no man can in any way glimpse it. ...So truly one and simple is this [power in the soul], so mode- and power-transcending, that neither power nor mode can gaze into it, nor even God himself! In very truth and as God lives! God himself never looks in there for one instant, in so far as he exists in modes and in the properties of his persons. ...For God to see inside it would cost him all His divine names and personal properties: all these he must leave outside, should he ever look in there. ...in that sense he is neither Father, Son, nor Holy Spirit, and yet is a something which is neither this nor that. ...In this part the soul is the same as God and not otherwise."
Meister Eckhart. Sermons and Treatises. Vol. 1. Sermon 2.