At birth, the human being is thrown into the world and, throughout his life, he discovers different ways of understanding the mystery of his existence. One of these ways is the ability to relate one's own life both to oneself and to others. This exercise can be done not only from a human perspective, but also from the perspective of faith in the God of Jesus Christ. This work explores how life stories endow the hearers of the Word with meaning and, at the same time, become theological places where Christian revelation is actualized. Life stories play a fundamental role in finding answers to questions such as who are we, where are we going, and what can we expect from our relationship with God and his Church? This work is an exercise in fundamental theology that seeks to establish the theological and hermeneutical bases for interpreting how the believer's life story relates, in an amicable way, to the Word of God.