If we ask ourselves what is a man?, what is a person?, then we should start out from the experience we have about ourselves, the experiences of our body, from the continuity in which the experience of knowledge and thinking is the experience of our entire person and not of a part (I'm the one thinking, not my brain thinking about me). On the other hand there are sufficient biological, anthropological and ontological arguments, which show that the concept of human being and the one of person may be used as synonymous terms, since they indicate the same reality. The question is why we still prefer to use the concept of person and not the one of human being. The answer seems as simple as possible. Although we essentially express the same reality, yet the concept of person attributed to man serves to express uniqueness, for the way a person is different from any other beings. Christian faith is presented as a place to be welded "the claim of dignity and human life socialization". Human ego finds actually in God not only his Creator, but also his absolute interlocutor, not just a master of life, but a Father of life, a Brother in human history, allowing us to understand the deep meaning of being created after the image and likeness of God. In this article we want to offer our reflections a scientific but also religious nature, regarding the secrecy and the permanent miracle of the human person's life.