VII. The Questions of Life and the Riddle of Death I
The materialist monist will argue how someone can sin in such a way against the view of monism; you split the human being in two parts.—You can argue that the chemist commits the same sin if he separates water in hydrogen and oxygen; but there you cannot forbid it to him. In no other way, we speak in spiritual science of a duality of the human being. That who does not know the methods of chemistry to recognise the existence of hydrogen in the water could also state that the hydrogen does not exist. Thus, somebody can also state that that does not exist which leaves the body with sleep. It concerns that during sleep the spiritual-mental of the human being is not aware of itself. For the usual consciousness all that is not there if it has left the body. Everything depends on the fact that the human being can recognise that which has left the body as something real.