The Feast of the Guardian Angels is a Catholic festival celebrated annually on October 2. Paul V was the first Pope, in 1608, to authorize a feast day in honor of guardian angels. Pope Clement X changed the date to October 2 and Leo XIII, in 1883, upgraded the date to a double major feast.
According to Christian tradition, every one of us has a guardian angel who accompanies us from the moment we’re born until the moment of our death, and the mission of these angels is to protect us throughout our lives and guide us to heaven.
"Angels cannot act directly upon our will or intellect, so they can only guide us to heaven if we want to go there. They can act on our senses and imaginations, encouraging us to make the right choices and live as Jesus wants us to." -St. Thomas Aquinas