A nun kneels and prays in the Church of the Holy Sepulchre in Jerusalem's Old City on Ash Wednesday, February 13, 2013. Ash Wednesday is the first day of Lent in the Western Christian calendar and falls 46 days before Easter. Ashes are gathered from the burning palm branches of the previous Palm Sunday and placed on the forehead or heads of Christians on Ash Wednesday. The ashes are a sign of mourning and repentance to God and marks the 40 days of prayer and fasting before Easter Sunday. UPI/Debbie Hill.