The feast day of St. Faustina Kowalska is celebrated on October 5 each year. It is because of St. Faustina that we have Divine Mercy Sunday. Have you seen Love and Mercy, the docudrama about Saint Faustina? It is definitely worth checking out. Here is the trailer: https://youtu.be/PMCQlSIoNk4 And here are some of our St.