This is the process of sucking the water into the large intestine through the rectum, and then throwing it out. This can be done in two ways.
1. Stand in navel-deep water or sit in Utkatasana in knee-deep water. Fit a rubber tube or a tube made of thin bamboo into your rectum and suck the water in your large instestine while doing Uddiyan Bandh. Now shake your belly and throw the water out. These days enema has become more common than this.
2. Put some warm water in an enema pot. A little salt or lemon juice can also be mixed in it. Keep the pot on a raised platform. First take out some water through the nozzle so that the air inside the tube is exhausted. Grease the nozzle with a little oil, lie down on your left side and put the nozzle (one-and-a-halfinch) inside the rectum. Open the water and exercise deep breathing. The water will go into the large intestine. Half litre water can be sucked in the intestine. Shake your belly, change sides and go to latrine after staying in this position for 10 to 15 minutes. Take light breakfast some time after this. Enema should always be done on an empty stomach.
It cleans the stomach and helps in the cure of stomach ailments. The large intestine is washed and cleaned and it thus becomes more strong. The adverse effects of all the three imbalances due to vaat, pitt and kaph are removed. It increases appetite, gives mental peace and makes the body light and active. A healthy person should take enema twice a month.