In this external world, which is full of finite things, it is impossible to see and find the Infinite. The Infinite must be sought in that alone which is infinite, and the only thing infinite about us is that which is within us, our own soul. Neither the body, nor the mind, nor even our thoughts, nor the world we see around us, is infinite.
If bodies please thee, praise God on occasion of them, and turn back thy love upon their Maker; lest in these things which please thee, thou displease. If souls please thee, be they loved in God: for they too are mutable, but in Him they are firmly established.
The soul is something which contains the body. The body doesn't contain the soul. The soul, if we put it into modern language, is the entire complex of relationships in whose context this organism exists.
I consist of body and soul - in the worlds of a child. And why shouldn't we speak like children? But the enlightened, the knowledgealbe would say: I am body through and through, nothing more; and the soul is just a word for something on the body.