Waving a smoldering handful of herbs around a person, as a ritual cleansing gesture. An American practice adopted from Native Americans, though the Native American practice itself is said to have arisen only in the past hundred years.

The use of burning incense or herbs to cleanse an area of unwanted influences.

To burn a special plant (usually Sage) in an area before a ceremony, a healing, or a lecture, which cleanses the atmosphere of any negativity.

Cleansing the energy field of a person, place or thing with sacred herbs or resins.

A frost-preventive measure used in orchards. Properly, it means the production of heavy smoke from the burning of fossil fuels intended to prevent radiational cooling, but the term is applied to both heating and smoke production.