Santan is one of those barks that is burned to remove any bad, negative, or energies from the home and surrounding. You can use this for beginning or during a misa, while doing a cleaning, cleaning a home, or stand over the incense while burning to penetrate your body to clean yourself. Very effective. Also very hard to find there is a bark and a resin mixed with bark which is most desired. The bark still has resins within it.