To see God means more than seeing a little light in meditation. Krishna makes an identical point in the Bhagavad Gita. Therefore I now give thee sight divine. Perfect purity of heart can be achieved only by abandoning ego-attachment. We are not the physical body, but the soul, made in the perfect image of God.
Earth is prized when it is out of doors in a field, because there it nourishes the plants.
On arable land it is called soil. Indoors, however, in a kitchen or on a temple floor, it is deprecatingly spoken of as dirt. Our hearts' feelings should be centered in God, for they belong there. There, they are pure. When the heart is cluttered with desires for anything else, however, that which it seeks is foreign to its true nature, and its feelings are therefore impure.