The incenses are ground in a mortar from resins, woods, herbs and spices. They have nothing in them which burns on its own, hence the need for a self-burning charcoal.
First you need something safe to burn your incense in. The charcoals used to burn resins get very hot. Use a burner made for resin incense, with a metal screen or with sand or rocks to insulate from the heat. Light the charcoal with a lighter or match, and when it starts to spark, put it in the burner.
lt is best to let the whole charcoal begin to glow before adding any incense. Then sprinkle on the incense as desired, a little bit at a time. lf you add too much or cover the charcoal completely, you might put out the charcoal. Also, most natural resin incenses smell better when burned in small amounts at a time.
Keep away from children and pets. Let the charcoal burn down completely, and make sure it's all ash before throwing out.