Holy water is water that has been blessed by a member of the clergy or a religious figure, or derived from a well or spring considered holy. The use for cleansing prior to a baptism and spiritual cleansing is common in several religions, from Christianity to Sikhism. The use of holy water as a sacramental for protection against evil is common among Lutherans, Anglicans, Roman Catholics,[1][2] and Eastern Christians.
Holy water has no power to beautify the soul here in time and the body in eternity, as Penance and the Eucharist have; but for those who reverently use it, having the right dispositions of faith and contrition, it has power to banish demons, dispel their deceits and vexations, cleanse the soul from stain of venial sins, avert earthly ills (other than those which God allows for our good), and to promote our temporal welfare.