Palo Santo also known as Holy Wood is a wood native to Peru and other areas of South America. This wood can be burned in your home,office or sacred space to cleanse the area of adverse energies. 
To use Palo Santo you simply light the end of the stick for about 10seconds and gently wave it taking in the light scent as the flame extinguishes and the smoke lingera bringing a calm and cleansed feeling to your aura and your space. 
BeHold! it is cleansed and all is well in your world again! This ritual can be done once a week or as often as needed.