Christ revealed who we are as human images of God. Even without original sin, all men and women, as images of God, need to know the God-man to know fully their identity, proper activity and to know that they should love God through a mutual bodily exchange of love and love others by using things for the sake of people. As images of God, we do not know ourselves unless we know God. Further, since we are made like God, we are called to act like Him. However, we cannot act like Him unless we know how He acts. In addition, since human persons are enfleshed spirits, they love in their unified totality, body and soul: “Love includes the human body, and the body is made a sharer in spiritual love” (Pope St. John Paul II). It seemed even at the dawn of creation that human beings were called to love God in and through their bodies. However, only in Christ was man’s suspicion about himself definitively confirmed. Finally, Christ confirms that we are to love others by exercising a dominion over things for the sake of people (Gen 1:26).
Although the angels are images of God, God did not need to become an angel for them to know their identity and proper activity. The angels are pure spirits as God is pure spirit. Thus, the angels are able to relate to God solely on the spiritual level. By relating to God as spirits to spirit, they experience their prototype according to their own nature and thus they can know themselves as spirits. Human beings, however, are both spirit and body. In order for them to experience God and thus come to know themselves, they must see God as spirit and body. In other words, they need to see Him enfleshed. Knowing this, and loving humanity with an everlasting love, God gave Himself to us in a bodily form to allow us to know ourselves and our proper activity and to reveal that we are to love God through a mutual bodily exchange of love.