Asperging is a form of ritual purification involving the sprinkling of liquid on the item, person or area to be purified.
Asperging is generally done with water that has been sanctified in some way. In Hellenic tradition, it is usually sanctified by dropping or dipping a burning bay laurel leaf into the water so that the flame is extinguished. Some traditions bless the water by sprinkling salt into it and declaring it like the sea, the “womb of the Earth”. Herbs or oils may be added or moon water may be used.
The water may be poured, sprinkled using the hands, or sprinkled using an herb that has been dipped into the water for that purpose.
Also of interest: lustral water, khernips