Now the more the mind is concerned about thinking and dealing with what is merely lower and human, the more it is separated from the experience in the intimacy of devotion of what is higher and heavenly, while the more fervently the memory, desire and intellect is withdrawn from what is below to what is above, the more perfect will be our prayer, and the purer our contemplation, since the two directions of our interest cannot both be perfect at the same time, being as different as light and darkness. He who cleaves to God is indeed translated into the light, while he who clings to the world is in the dark. So the supreme perfection of man in this life is to be so united to God that all his soul with all its faculties and powers are so gathered into the Lord God that he becomes one spirit with him, and remembers nothing except God, is aware of and recognises nothing but God, but with all his desires unified by the joy of love, he rests contentedly in the enjoyment of his Maker alone.