Saint Christopher is mainly known in the West. Ancient Greek mythology, says that he carried a child, who was unknown to him, across a river, before the child revealed himself as Christ. Therefore, he became the Patron Saint of travelers, and small images of him are often worn around the neck, on a bracelet, carried in a pocket, or placed in vehicles by Christians.
Which is why, I have had one hanging on the mirror of every car, I have ever owned! So this morning I moved mine to our replacement vehicle this morning!