Guggul is a resin of Commiphora Mukul tree, its fragrance is similar to that of myrrh. Small amounts of guggul should be burnt in the beginning of various sadhana practices at the moment of dispelling the obstructing forces and visualizing the protection circle. It is said in the teachings that obstructing forces cannot stand the smell of guggul.
Guggul is burned in a separate vessel over hot coals. Watch this video to learn how it is done in the monastery:
This guggul has been thoroughly selected by the Senior Chöpön (master of ritual ceremonies) of Ka-Nying Shedrub Ling Monastery. Same guggul is used daily during the pujas at KNSL.