Karen
Cleansing the body is an important step in personal growth, but it is a very very big step, and not everyone needs that kind of stimulus and change in their lives. If you are drawn to it, just let your curiosity take over for a while and do some learning. Andreas has a lot to offer you, and reading his books is a great start. Curezone.com is a good place on the web to see what others are doing to 'alter' their health by various methods... ;-)
While it does not seem pleasant to think about, putting water into the colon is a crucial tool to use in cleansing the body. Almost any cleansing of body tissues will try to dump the yuk into the colon, either indirectly, like liver cleansing which dumps into intestine which leads to colon, or lymphatic cleansing which dumps directly into the colon.
The colon's normal job is to ferment the liquid food, and then to squeeze water out of the food and soak it up into the bloodstream, making a semi solid for the potty. While cleansing, there will be much higher than normal amounts of poisons in the colon which you don't want absorbed back into the blood because it will make you feel sick.
Many people believe that some diseases are born and live in the colon, due to the presence of so many yukky things getting stuck in there over the years, and continually leaking their poisons into the blood, effecting every other system in the body. There are other places in the body where crud can build up besides just the colon, like liver, kidneys, arteries, basically anywhere there are pipes, and this is why we cleanse - to remove the built up crud created when we did not care for our bodies correctly, mostly out of ignorance, since nobody teaches us at a young age how to correctly care for the body.
When this stuff is removed, the hope is that you will feel like a new person, as good as you felt as a young child and for many people this dream comes true. The reality is you are not an innocent child and there are emotional and mental issues to 'cleanse' too, but these are infinitely easier to go through when the body is clean, because - Cleansing the body of physical crud also removes the most physical of all emotions, fear, which restores joy and power to you, and then anything is possible and you become like a child. The reward is worth every bit of difficulty and discomfort during the process, and if you follow the advice an experienced teacher, like Andreas you will have minimum problems.
Give it a try, then when you see that it is not that hard, stick with it and watch your life change for the better over the years. You will see improvements in your health within a few days. What you put into your mouth is the biggest change and shows the fastest improvement.
Rich