The Latin name for Cedar is arbor vitae, which translates to "Tree of Life." For millennia, people have used cedar for medicinal and spiritual purposes. When burned, it cleanses the area of negative energy and brings in good influences. It also emits a pleasant scent.
Cedar is known to Native Americans as one of the four sacred medicines, along with sweetgrass, sage, and tobacco. The major purification herb employed at the Lakota sun dance ceremony is cedar. Cedar was offered to the fire to cleanse not just the people but also the space, and cedar branches are used to cover the floors inside sweat lodges. It's supposed to help with clairvoyance, revitalize tired bodies, minds, and spirits, as well as guard against illness.