A Coffee enema is not a high colonic – it is used to facilitate the opening of the bile ducts in order for the liver to release accumulated toxins and so cleanse itself.
Medical researchers such as Profs. Meyer and Huebner at the University of Goettingen in Germany (confirmed by Peter Lechner, MD some 70 years later) found that the caffeine travelled via the hermorrhoidal vein and the portal system to the liver causing the bile ducts to open. Dr. Max Gerson has done amazing work on the subject with proven results over many years. When the liver is damaged and debilitated it is better to support it and not overburden or poison it in the detoxification process.