"Purification is necessary in achieving calmness and stillness. if you want tremendous spiritual energy to pass through the body... you must purify.
purification of the body and that of the incarnated soul is necessary for spiritual development. with thorough purification, if is easier to achieve oneness with the higher soul.
self purification means that the body is made strong enough to withstand higher energy. internally you have to be wholesome."
- Grand Master Choa Kok Sui (Ther golden lotus sutras, beyond the mind)