Holy Water and Holy Oil
In a Christian home, a bottle of holy water, blessed in the parish church, is kept in the icon corner and sometimes by individuals in their rooms. This holy water is to be used, not left on the shelf, and disposed of when newly sanctified holy water is obtained.
Holy water may be used in cases where a person falls under the power of evil spirits. The individual should be encouraged to drink some of the sanctified water and be sprinkled with it. At times when members of the family feel an especially evil force within the home, the head of the family should sprinkle the inside walls of the family church with holy water in the same manner as is done by the priest. Other members of the family, bearing candles or icons accompany him during this sprinkling. The evil spirits should be exorcised by this sprinkling of sanctified water; however, if their force persists, the priest should be asked to come and bless the family church.
As the first thing taken into the body, holy water (together with a piece of antidoron, if this available) may be drunk in the morning. It is drunk at times of temptation and in times of illness, in fits of anger; it may be used to sign the Cross on sores and cuts.
Oil is referred to frequently in both the Old and New Testaments as a main source of good, for lighting, for healing, for anointing and for cosmetic purposes. The practice of anointing with oil is observed today in the Orthodox Church as it was in apostolic times. The anointing with oil takes place in the Mysteries of Baptism and Holy Unction and at the All-night Vigil Service on the eves of important feasts.
In the New Testament, we can see that the use of oil was a practice carried out from apostolic times. “Is anyone among you sick? Let him call for the elders of the Church and let them pray over him, anointing him with oil in the name of the Lord.” (James 5:14)
Oil symbolizes God's mercy and when used in anointing it is a visible embodiment of the grace of healing. Christians, therefore, often keep small bottles of holy oil in their icon corner and anoint themselves and others of their family with the sign of the Cross in holy oil. This anointing is usually done on the individual's forehead and is used for the same reasons for which holy water is used.
Oil taken from oil lamps burning in holy places, where saints and holy persons are buried, and in front of miraculous icons is considered to be blessed by God and is used often by Orthodox Christians in the same manner as oil which has been blessed in a formal manner in church.
Holy water and holy oil are both restorative and protective when they are used with faith and belief in the grace of the Holy Spirit that sanctified them.