"Who would live a second, who would breathe a second in this universe, if that Blessed One were not filling it?" Because in and through Him we breathe, in and through Him we exist. Not the He is standing somewhere and making my blood circulate. What is meant is that He is the Essence of all this, tie Soul of my soul. You cannot by any possibility say you know Him; it would be degrading Him. You cannot get out of yourself, so you cannot know Him. Knowledge is objectification. For instance, in memory you are objectifying many things, projecting them out of yourself. All memory, all the things which I have seen and which I know are in my mind. The pictures, the impressions of all these things, are in my mind, and when I would try to think of them, to know them, the first act of knowledge would be to project them outside. This cannot be done with God, because He is the Essence of our souls, we cannot project Him outside ourselves. Here is one of the profoundest passages in Vedanta: "He that is the Essence of your soul, He is the Truth, He is the Self, thou art That, O Shvetaketu." This is what is meant by "Thou art God." You cannot describe Him by any other language. All attempts of language, calling Him father, or brother, or our dearest friend, are attempts to objectify God, which cannot be done. He is the Eternal Subject of everything.