Visualise clear energy entering the left nostril and into your whole body, and then visualise a clouded energy exiting your right nostril (if you have toxins in your body the energy that comes out will appear either black or grey) . Keep doing this till you see or feel a clear energy leaving your right nostril.
When doing this exercise you don't need to physically close either of the nostrils - just see or feel the energy entering and exiting.
See how you feel at the end of it.
Please note that this is not an exercise to bring balance as is the case with alternate nostril breathing (see my article on how to do alternate nostril breathing) - it is purely a way of releasing toxins in the body.
After the above exercise, if you feel you need to, bring balance into your body by doing alternate nostril breathing. You can also do this breathing technique without physically closing either of the nostrils.
As a basic principle, left nostril breathing is controlled by the right hemisphere of the brain and activates the parasympathetic nervous system (and related to the unconscious mind) and the right nostril is controlled by the left hemisphere of the brain and activates the sympathetic nervous system (and related to the conscious mind). More information on this will be posted in due course.
