Cedar is first and foremost a medicine of protection. It is often used to cleanse a home when first moving in, inviting unwanted spirits to leave and protecting a person, place or object from unwanted influences. ... The smoke of burning cedar is said to attract the good spirits and eliminate negative energies. Smudging, the ritual burning of sage or other holy herbs, is done to clear a space or person of negative energies. If your home feels stale or sad, if an argument has taken place and the air still hums with anger, if unpleasant energy lingers after a visitor – these are times to smudge. One may also smudge one’s self to banish anger, ailment, sadness or illness
How to smoke cleanse in a (nut)shell.
Open a window when you do indoor smoking so that the energy can flow away. Once you’ve cleansed a space, and the stagnant energy has been dispelled the space is left with a vacuum. At this point, it’s important to fill the space with the energy of love and white light. You don’t want your space filled with random energy that floats around, right?! You can burn your favorite incense, use an essential oil spray or light up a stick of fragrant Palo Santo and call in your desired energies.