Shoucha is important on many levels, and is believed to be essential for holistic health and happiness. It is thought that as the self evolves, shoucha, and an understanding of it, will deepen.
Yogic practices such as pranayama and asanas are thought to help cultivate internal shoucha. The "Hatha Yoga Pradipika" describes very specific cleansing techniques called shatkarmas, which help cleanse the body and mind. These include nati (nasal cleansing), nauli (abdominal massage) and trataka (candle gazing).
Excessive speech should be avoided. Self-examination and awareness can help rid the mind of anger, hatred, pride, greed and fear. Mindfulness and meditation will also help purify the mind, particularly when the focus is on the yogi’s intentions, feelings and actions.
It is said by some sources that once purity is achieved, the yogi will no longer have the illusion of the importance of their body and will lose the desire to interact with other bodies. Constant touch with others and physical contact is a barrier to achieving shoucha.