(Burseara Graveolens) Palo Santo or Holy Stick is a natural wood aromatic incense used for centuries by the Incas and indigenous people of the Andes as a spiritual remedy for purifying and cleansing, as well as to get rid of evil spirits and misfortune. as well as for medicinal purposes. It has a fine citrus aroma with underlying notes of frankincense, its close relative. It is often used by shamans in sacred plant spirit ceremonies.