Easter Sunday is the most important feast in the Catholic Church, celebrating the Resurrection of Jesus Christ from the dead. It marks the victory of life over death and sin. The day begins with joyful Masses, featuring the Gloria, Alleluia, and festive hymns. Churches are decorated with flowers, and the faithful rejoice in the hope and new life brought by Christ’s Resurrection. It begins the Easter season, which lasts for 50 days until Pentecost.