Holy oil, also known as chrism, is a consecrated oil used in various religious ceremonies, particularly in the Christian tradition. It is typically made from a mixture of olive oil and balsam, and is blessed by a bishop during special services. Holy oil is used in sacraments such as baptism, confirmation, and ordination, symbolizing the presence of the Holy Spirit. In addition to its use in sacraments, holy oil is also employed in the anointing of the sick, providing spiritual comfort and healing. The practice of anointing with oil has roots in ancient traditions, signifying blessing, protection, and divine favor.