In Kayakalpa, bodily regeneration and degeneration is considered to be the by-product of two main cellular processes of growth (anabolic), and decay (catabolic). It is essential to bring these twin processes into equilibrium and harmony to attain an optimum cellular metabolic state - excellent health.
This is achieved by the twin processes of purification and nourishment. Excess anabolism or overgrowth of body cells needs purification to bring it back to harmony. Purification performs the necessary catharsis of metabolic toxins that enable the bodily systems to slow down rampant cell growth.
Excess cellular decay or death, is balanced by nourishment enhancing the anabolic process, bringing about and maintaining a healthy rate of cellular renewal. The twin tools of nourishment and purification are intertwined interdependent, and work synergistically to bring the human body, mind and psyche to their peak.