In magic, "Dragon's blood" refers to the resin of a type of palm tree. This, I presume, is from the tree itself. To me, the fiery, vital power of the resin is tempered by the energy of air – with wisdom, freshness, and faith. The combination of air and fire, is powerful - but in this case, manageable, because you are the one in control.
This is forceful herb, expansive energy, fire element, traditionally used for vitality, energy, victory, success, potency, sexuality, and protection. A pinch added to any herbal mixture will give its energy an added kick.