Catholics will observe the Solemnity of the Immaculate Conception on December 8. What does this feast day celebrate? While the day does involve Jesus, the feast day is about Mary. Many people think that the term “Immaculate Conception” and its corresponding feast day refer to Jesus’ conception by the Holy Spirit. The term “Virgin birth,” is actually the term that describes this mystery. Mary herself was conceived without sin. The Immaculate Conception is about Mary. The Origins of the Feast... Read more