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.
The Kingdom of Heaven is within us. God is within us. He is the Soul of our souls. See Him in your own soul. That is practical religion. That is freedom.
Every formed disposition of the soul realizes its full nature in relation to and dealing with that class of objects by which it is its nature to be corrupted or improved.
I sing the body electric,
The armies of those I love engirth me and I engirth them,
They will not let me off till I go with them, respond to them,
And discorrupt them, and charge them full with the charge of the soul.
The Vedas teach that the soul is divine, only held in the bondage of matter; perfection will be reached when this bond will burst, and the word they use for it is, therefore, Mukti - freedom, freedom from the bonds of imperfection, freedom from death and misery.