Last Wednesday, Christians around the world began the liturgical season of Lent. The start of Lent is determined by the date of Easter, which fluctuates from year to year. Easter is determined as the first Sunday after the full moon on or after the Vernal Equinox. Lent and Easter comprise two poles of a major liturgical season for Christians. It was and still is, a time of preparation for the central mystery of the Christian faith.