frankincense Clear thinking, eliminates everything that is negative, projection support, rheumatism fight, purification, protection, spirituality, fight leg pain, brings projects to a successful conclusion.  Boswellia Serrata ( Purifying Oliban ) , facilitates meditation, promotes astral travel.  Incense is a resin produced by a tree called Boswellia sacra, from the family Burseraceae. The tree would come from Dhofar, in the present sult