Like justness in a judge's decision, or beauty in a painting, soul is a quality of absoluteness in something relative. Understood profoundly, people are connected to the holiness of the world in such a way that they reveal a dimension of holiness in themselves, a dimension of depth that is absolute.
Love all that has been created by God, both the whole and every grain of sand. Love every leaf and every ray of light. Love the beasts and the bids, love the plants, love every separate fragment. If you love each separate fragment, you will understand he mystery of the whole resting in God. When you perceive this, your understanding of this mystery will grow from day to day until you come to love the whole world with a love that includes everything, excluding nothing.
