But it has all this apart: the sleeping MAN, it is plain, is conscious of nothing of all this.

Let us suppose, then, the soul of Castor, while he is sleeping, retired from his body; which is no impossible supposition for the men I have here to do with, who so liberally allow life, without a thinking soul, to all other animals.
These men cannot then judge it impossible, or a contradiction, that the body should live without the soul; nor that the soul should subsist and think, or have perception, even perception of happiness or misery, without the body.

Let us then, I say, suppose the soul of Castor separated during his sleep from his body, to think apart.

Let us suppose, too, that it chooses for its scene of thinking the body of another man, v.g.Pollux, who is sleeping without a soul.

For, if Castor's soul can think, whilst Castor is asleep, what Castor is never conscious of, it is no matter what PLACE it chooses to think in.