The burning of smudge sticks is used for cleansing a space, person or group, for warding off negative or stagnant energy and for protection. 
 
Clearing Smudge Stick: white sage 
 
Courage Smudge Stick: Prairie Sage, Mugwort and Patchouli
 
Harmony Smudge Stick: white sage and lavender
 
Protection Smudge Stick: white sage, cedarwood and sweetgrass