Black sage is used to encourage visions and vivid dreams. When burned during or before bedtime, this herb aids in a pleasant dream and a night of restful sleep. Also used for Cleansing and Purifying. It helps increase the positive energy in your home by removing all the negative and harmful energies. (Black Sage) Mugwort is a small, highly aromatic, evergreen shrub of the genus Salvia mellifera native to California. This sage is wild grown.