PREPARE FOR THE GREAT TRIBULATION AND THE ERA OF PEACE This booklet is designed to help altar servers better understand their role in the celebration of the Holy Eucharist. It includes a small dictionary of liturgical terms and sacred vessels, a description of vestment clothing and accessories, and the different types of candles used in the Mass. It also features directions on how the altar servers should prepare for the ordinary parish Mass, funerals, and weddings. This is a helpful guide to explain terms and rituals used in the Catholic liturgy.