For hundreds of years, white sage has been considered a sacred, cleansing, purifying, and protective plant. It's leaves are a whitish-green, and if you rub the fresh leaves between your thumb and forefinger, a refreshing, cleansing scent is released. Native Americans started the tradition of using Sacred Sage to ward off evils spirits and negative energies.
Sage Smudging is a ritual where the leaves of the Sage plant are burned, and the smoke is directed into and onto areas that are in need of clearing and protection. The idea is that as the leaves are burned, and you speak express your gratitude for it's assistance, the spirit of the sage plant releases it's energy of protection and clearing into the space or onto the object that needs clearing.