While desert white sage is the strain of sage generally reached for for spiritual cleansing needs, common sage works just as well. When burned sage is a powerful spiritual cleanser that not only pushes out negative energies, but also provides a protective boundary. It has long been used in healing. An old proverb says “why should a man die who has sage in his garden?”. It was used in the Middle Ages to treat fevers, liver disease and epilepsy.