Ron, just as it is possible to compact sand (look at building sites or sand castles on the beach) and grains of sand are tiny, it is also possible to compact matter in our colon especially if the colon is not cleansed sufficiently or not enough fluids are consumed to help pass the waste through the colon. Waste that lingers in the colon too long becomes toxic and these toxins can be reabsorbed into you body and make you feel unwell. Georgina was quite right in saying that Gallstones and other sludge can become stuck or slowed down while passing through the colon. coffee enemas help to get things moving. Give Georgina support and encourage her, helping each other is what this site is about. Good health. Regards, Nan from Australia