The idea that each soul has assigned to it a personal guardian angel has been long accepted by the Church and is a truth of our faith. From the Gospel of today's liturgy we read: "See that you do not despise one of these little ones, for I say to you that their angels in heaven always look upon the face of my heavenly Father" (Matthew 18: 10). The Catechism of the Catholic Church states that "the existence of the spiritual, non-corporeal beings that Sacred Scripture usually calls 'angels' is a truth of faith (328)." From our birth until our death, man is surrounded by the protection and intercession of angels, particularly our guardian angel: "Beside each believer stands an angel as protector and shepherd leading him to life (336)." The Church thanks God for our helpers, the angels, particularly on this feast day and September 29th (the feast of Archangels Michael, Gabriel and Raphael). Today's feast appeared in Spain during the 16th century. It was extended to the universal Church and made obligatory in 1670.