that, unlike the stars, is in a few inches or feet of us, and yet in many respects is as profoundly unknown. Mystery after mystery rolls up before us in the questions, What is spirit, and how can it act independently of matter? And when does the soul begin its existence; and is it generated or created? Does it exist seminally, or is it a direct creation of God in the womb? Then, where is its location in the body? That it is there we do not doubt, but in what part of the body? Does it fill the physical