Here’s a beginners/all levels 15 minute guided Nadi Shodhana Pranayama/meditation.
Nadis are subtle energy channels in the human body that can get blocked due to stress, mental and emotional trauma, and our lifestyle habits. The Nadi Shodhana Pranayama is a breathing technique that helps clear and purify these blocked energy channels, thus allowing the life-force (prana) to flow freely. Clearing mental clutter and calming the mind, this practice will lower the heart rate, rebalance the nervous system and balance the left and right hemispheres of the brain.
Working with the left nostril in particular, will leave you feeling relaxed, it will ease anxiety and lower feelings of stress.