Smudging, or burning sage, is an ancient spiritual practice. Sage is used to clear the energy of a person, object, or an area of space such as a car, a room, or a building. Burning sage will clear negative energy from your space to promote a positive environment for meditation, healing, and other spiritual practices. Sage is especially useful to cleanse objects bought second-hand, new appliances, a new bed, or a new car. Studies show that sage can boost your mood and help to eliminate stress, anxiety, and depression.