Resin incense is created in its purest form from the sap, bark, roots, or wood of trees, shrubs, and plants using essential oils. It does not burn on its own and requires charcoal tablets and a charcoal incense burner to be activated. Fill the container 3/4 full with sand or stones to absorb some of the heat and light the charcoal outdoors. After a few minutes, add a piece of resin to the coal and it will start to melt and release its scented smoke.