You have to burn sage leaves to feel how it cleanses any space of negativity. It brings a sense of calmness and lightness in the air. Ofcourse this is my experience but burning sage leaves for cleansing a room, group of people or even a single person is an ancient ritual in some cultures.
It is also said to improve clarity, concentration, sluggishness in any room or even people. If you are feeling a bit run down just try burning some sage to clean up the air and lift the mood.
Smudging – the process of burning a bunch of burning dried herbs or leaves as this sage bundle – can be an easy walk through the home and allowing the smoke to clear the energy of the space or it can be as elaborate as a ceremony; where people drum, sing, chant while another fans the smoke of the sage with a feather all around.
Do the method that works best for you but remember that intent is important. Sage is burned to cleanse and purify. By doing this we are inviting the angels and our ancestors to come into our space and take care of us.