First Communion is considered one of the holiest and most important occasions in a
Roman Catholic's life. The celebration of first communion means that a person has received the body and blood of Jesus Christ. Usually done when a person is about seven or eight, First Communion begins with confession, and then baptism, but first, the person must study the Bible for at least two years. The event means that the children have studied and understood to the best of their abilities the mystery of the changing of the substance of ordinary bread and wine into the substance of Christ's body and blood.