The guardian angel, although not a "saint" in the traditional sense of a canonized person, is a central figure in Christian tradition, rooted in the Holy Scriptures. Its veneration is rooted in the biblical belief that God assigns each individual an angel to protect and guide them. Already in the Old Testament there are references to celestial beings sent by God to assist man (Psalm 91:11: "For he will command his angels concerning you to guard you in all your ways"). This belief is strengthened in the New Testament, particularly with the words of Jesus: "See that you do not despise one of these little ones. For I tell you that their angels in heaven always see the face of my Father in heaven" (Matthew 18:10). The feast of the Guardian Angels, celebrated on October 2, was officially established in the 17th century by Pope Clement X, consolidating an already widespread popular devotion. The veneration of the guardian angel is an invitation to trust in divine providence and to be aware of constant and invisible protection.