Palm Sunday is Christian feast before Easter, when the triumphal entry of Jesus into Jerusalem is celebrated. Palm Sunday always falls on the Sunday before Easter Sunday. In 2011, Palm Sunday will be celebrated on April 17.
Although the return to Jerusalem is recounted in all four canonical gospels, the traditions of Palm Sunday are largely based on the description from the Gospel of John. Many churches celebrate with processions in which palm fronds are carried.
According to the Catholic Encyclopedia, The branches of palms signify victory over death and the advent of spiritual victory through Christ. The death and Resurrection of Christ bring us closer to eternal life as man becomes one with God and God becomes one again with man.
Palm Sunday has also been declared as Alay Kapwa Sunday by the Catholic Church, an occasion to collect donations to help fund the Church's social services and programs for the poor.
The biblical account of Palm Sunday can be found in Matthew 21:1-11; Mark 11:1-11; Luke 19:28-44; and John 12:12-19.