The Unity of the Soul

Aristotle didn't believe that a soul in the Christian sense of you die and then your soul as a ghost that floats away. He still thought that every organism, even a ladybug, even, you know, something moving in an orbit, like if it has a principle of motion,. It is a unified thing, a real unified thing. But couldn't you say that the soul is a piece of God? I mean, isn't it all?