Why do people burn garlic at home?

1 whole garlic clove (unpeeled)
A small heat-resistant dish (metal or ceramic)
A lighter or match
A well-ventilated room
Steps:

Open a window for ventilation.
Place the garlic in the bowl.
Light one end and let it ignite briefly.
Blow gently to smolder.
Let it smoke for 10 to 15 minutes.
Never leave unattended and always place the container on a heat-resistant surface.

Best times to try it
: After a visit: to refresh the atmosphere.
In the evening: to promote a peaceful sleep.