Passion Sunday is the fifth Sunday in Lent, which marks the beginning of the Holy Week and the commemoration of Jesus Christ's passion, suffering and death on the cross. It is also known as Palm Sunday, as it marks the day when Jesus made his triumphal entry into Jerusalem, where the people greeted him with palm branches. Other synonyms for Passion Sunday include the Sunday of the Palms, the Great and Holy Sunday, the Sunday of the Willows, and the Sunday of the Lord's Entry into Jerusalem. It is a significant day in the Christian calendar as it symbolizes the ultimate sacrifice Jesus made for the salvation of humankind.