The Feast of the Transfiguration of Jesus is observed worldwide on August 6. This feast commemorates the Transfiguration, a significant miracle in which Jesus is transformed and shines with bright light while conversing with the prophets Elijah and Moses on a mountain. The date was established by Pope Callixstus III to honor the victory at the Siege of Belgrade in 1456. It is recognized as one of the five major milestones in Jesus Christ's life, alongside his Baptism, Crucifixion, Resurrection, and Ascension. The celebration is primarily observed in the Roman rite, while some Protestant churches also mark it on the last Sunday of the Epiphany season or the eighth Sunday after Pentecost. The event symbolizes the connection between the temporal and the eternal, highlighting Jesus as the link between earth and heaven.