Burning sage, also known as smudging, is a ritual that's believed to cleanse a space of negative energy. It's a Native American tradition that has been linked to healing and wellbeing for thousands of years. 
Benefits:
Remove negative energy: Get rid of past traumas, bad experiences, or negative energies from others 
Promote healing: Create a positive environment for meditation or other rituals 
Improve mood: Ease anxiety and uplift the spirit 
Restore balance: Fill the air with a light and comforting feel 
Improve air quality: Reduce odors and repel bugs