Oil of catechumens
The Oil of Catechumens, also known as the Oil of Excorcism, is the oil used in some traditional Christian churches during baptism; it is believed to strengthen the one being baptized to turn away from evil, temptation and sin. The Oil of Exorcism was mentioned in the ancient Christian Apostolic Tradition as being "used before baptisms to put to flight any contagions that might obstruct the impending baptismal graces." The Egyptian Church Order teaches that it is blessed during the Easter Vigil, the first liturgy of Eastertide. The catechumen, the person prepared for baptism, is also anointed  as a symbol of being the heir of the Kingdom of God, as kings and queens are anointed at coronations, and empowered for their Christian life as prophets were anointed for their ministry. The Oil of Catechumens is intended to help strengthen the person about to be baptized, and prepare them for the struggle ("ascesis") of the Christian life, the way a wrestler in ancient Greece and Rome was anointed before a wrestling match. Eastern Orthodoxy. In the Eastern Orthodox Church, the oil of catechumens is blessed by the priest during the baptismal rite. After the consecration of the baptismal  water, a vessel of pure olive oil is brought to the priest by the deacon. The priest breathes on the oil three times and blesses it thrice, and says the prayer of blessing. The priest then pours a portion of the oil into the baptismal font, making the Sign of the Cross with the oil three times, as all sing Alleluia. The priest gathers some of the oil floating on the surface of the water onto the first two fingers of his right hand and anoints the catechumen, making the Sign of the Cross on the brow, breast, between the  shoulders, on the ears, hands and feet. The catechumen is then immediately baptized. This anointing before baptism should not be confused with chrismation, which is a separate Sacred Mystery (Sacrament), though it is usually performed immediately after Baptism. Roman Catholicism. In the Roman Catholic Church, the Oil of Catechumens is specially blessed by a bishop or a priest along with Chrism and oil of the sick at the Mass of Chrism which takes place on Holy Thursday. During the baptismal rite, the priest or deacon says the following words as he anoints with the oil in the shape of a  cross, "We anoint you with the oil of salvation in the name of Christ our Savior; may he strengthen you with his power, who lives and reigns for ever and ever."