The mystery of creativeness is surrounded with awe. A special reverence does envelop the power to be co-creators with God in the making of human life. It is this hidden element that in a special way belongs to God, as does the grace of God in the sacraments. Those who speak of sex alone concentrate on the physical or visible element, forgetting the spiritual or invisible mystery of creativeness. Humans in the sacraments supply the act, the bread, the water, and the words; God supplies the grace, the mystery. In the sacred act of creating life, man and woman supply the unity of the flesh; God supplies the soul and the mystery. Such is the mystery of sex.