According to Rahner, human beings are created to be oriented towards the incomprehensible Mystery called God. However, this human orientation towards the Mystery can be fully grasped only if we as humans freely choose to be grasped by the incomprehensible One: if God assumes human nature as God's own reality with God's irrevocable offer of God's self-communication, and a person "freely" accepts it, the person is united with God, reaching the very point towards which humanity is always moving by virtue of its essence, a God-Man which is fully fulfilled in the person of Jesus of Nazareth claimed by Christian faith. In this sense, Rahner sees the incarnation of God as "the unique and highest instance of the actualization of the essence of human reality".