Collect All of Your Materials:
dried rosemary sprigs or leaves on their own.
pot or dish that can withstand high temperatures.
Prepare Your Area for Use:
Locate a location that has enough ventilation in order to avoid the smoke from building up.
Check to see that there are no combustible items in the area.
Rosemary should be ignited:
Using a lighter or a match, ignite the dried rosemary leaves or sprigs from the rosemary plant.
Burn the flame for a little period of time, and then extinguish it with a blow. It should be possible for the rosemary to smolder and produce pleasant smoke.
Enjoy the Scent of It:
Permit the smoke to spread around the space, and take in the calming scent when it gets there.
Maintain your concentration on your goal, whether it be to relax, cleanse, or improve your ability to concentrate. 

Important Safety Measures:

When trying to burn plants, you should always take care. Always use a container that is fireproof, and never leave herbs that are burning unattended.
It is important to be aware of any sensitivities or allergies to smoking that you or anybody else located in your area may have.
For the record:

Burning rosemary in your own home is a simple but effective technique that has the potential to improve both your surroundings and your well-being. The fragrant alchemy of rosemary may perform miracles in a matter of minutes, whether you are looking to cleanse the air, lessen the effects of stress, increase your ability to concentrate, or infuse an atmosphere with a spiritual quality. By giving it a go for yourself, you will be able to uncover the amazing consequences that this old herbal practice has.