How to burn Incense Resins

Using a pair of charcoal tongs, light the edge of a charcoal tablet with a lighter or candle.
Place the ignited tablet in an incense burner containing sand.
A slight crackling will quickly spread across the entire surface. Wait for the crackling to finish before placing some incense resins on it.

The burning charcoal lasts about an hour, allowing you to add as much resins as you want during this time.