White Sage is used for many purposes, including healing, energy cleansing or to remove negative energy. Eucalyptus is often used in smudging for protection, health boosting and for cleansing. It is known as one of Earths earliest herbal healer. It encourages emotional balance, is considered a stimulant, which strengthens concentration and can encourage visions and awaken the spirit.
Smudges may help clear the air, scientists have observed that sage can clear up to 94 percent of airborne bacteria and disinfect the air. Also, when sage is burned, it releases negative ions, which is linked to putting people into a positive mood. 
Smudging requires simple ingredients like matches, smudging herbs, and a smudging bowl. Before you start, remember to open a door or window, because the unwanted energy you are trying to clear must have a pathway to get out. First, light one end of your smudge, allowing it to catch fire and burn for several seconds. Then gently blow on the lit end - the smudge will begin to glow and smoke. Lay the smudge on a heatproof bowl to catch the ashes as it burns.