Incense is a smoke-emitting substance made of natural materials that can be burned to produce pleasant smell. The earliest forms used oils, wood, sage, and resins. Incense is believed to be able to purify and clear your surroundings of negative energy. It is used as offerings in temples, and for their cleansing, calming, and health benefits at home.
In Buddhist practice, burning incense during the Hungry Ghost Month is an effective way to appease spirits who are believed to “feed” on its fragrance.