The central fire, called jatharagni, governs the digestion and assimilation of food. When agni is robust and healthy, then whatever a person eats, the system digests, assimilates, and absorbs it, then eliminates the impurities. When agni becomes weakened or disturbed due to unhealthy lifestyle, poor diet, or negative emotions, food is not properly digested.
The undigested, unabsorbed food particles accumulate in the gastrointestinal track and other subtle sites in the body and turn into a toxic, sticky, foul-smelling substance called ama. When these molecules of ama clog the channels, the cellular intelligence (prana) which is constantly flowing between the cells gets blocked, and disease arises. The ama has to be eliminated from the body by cleansing and purification techniques (panchakarma).
Panchakarma (rejuvenation therapy) is designed to draw ama out the dhatus (body tissues), return it to the digestive tract and expel it from the body. The uniquess of panchakarma is that puts the atention on the patient, and recognizes and uses the specific qualities of the patients physiological make-up to heal. After panchakarma the person will feel lighter, younger, and with a clearness of mind.