The "Baptism of Christ" refers to the event in which Jesus was baptized by John the Baptist in the Jordan River. This event is significant in the Christian tradition as it marks the beginning of Jesus' public ministry. During the baptism, the heavens opened, and the Holy Spirit descended upon Jesus in the form of a dove, symbolizing divine approval. This event is recorded in the New Testament of the Bible, specifically in the Gospels of Matthew, Mark, and Luke. The baptism serves as an important moment of revelation, highlighting Jesus' identity as the Son of God and emphasizing the importance of baptism in the Christian faith.