"Here is an article for Trataka (Candle gazing) a Shatkarama or yogic cleansing that helps the pituitary gland recover from overstimulation and assists to focus and sooth the mind. This can be done every night before bed for 3-5 minutes with great results."

-Devoted Yogi

https://yogainternational.com/article/view/candlelight-insight-trataka