Shatkarma – Purification Techniques in Hatha Yoga
The Shatkarma or the six purification techniques in Hatha Yoga are designed to make the body strong and healthy. ‘Shat’ means six and ‘Karma’ here means a method or technique. Shatkarmas are considered preparatory steps towards higher practices of pranayama and meditation. The ancient Rishis recognized the importance of a healthy body for all activities, whether worldly or spiritual. Hatha Yoga, as explained in the text ‘Hatha Yoga Pradeepika’, is aimed at making the body and mind fit for higher practices of Raja Yoga.
The Shatkarmas consists of six techniques. They can make the body clean and strong, free of diseases, remove toxins and improve concentration. It can also improve the flow of prana into the organs and the pranic meridians or nadis. The six techniques are – Dhauti, Bhasti, Neti, Trataka, Nauli and Kapalabhati. All these techniques should be learned from an experienced teacher. Let us discuss it briefly one by one.
- Dhauti – Dhauti is the practice of cleaning the stomach. It is done on an empty stomach in the early morning. It is a method of removing undigested particles of food from the previous day’s meal, which continue to stick to the stomach lining and cause problems with digestion. The practitioner drinks about 1 – 1 ½ liters of warm saline water (roughly one table spoon of salt to be added to 1 liter of water). Then he vomits the whole water out. To vomit, the best position is to bend over and put two fingers at the root of the tongue. By stimulating the root of the tongue, the vomiting reflux is induced, which throws the salt water out of the stomach along with the impurities. Continue till all the water is removed. There is another practice called Vastra Dhauti. Here a 30 feet long cotton cloth is first dipped in saline water and then swallowed carefully. Then it is pulled out slowly, thereby cleaning the inner linings of the stomach and food pipe. This has to be learned under an expert.
- Bhasti – Bhasti is the cleaning of the bowels. In this practice, traditionally water is drawn in from the anus into the colon by contacting the abdominal muscles. A rubber tube can also be used to aid the process. Then the water is thrown out of the anus, thus cleaning the colon of particles that might have been stuck in the large intestine for a long period of time. This is a yogi’s method of enema. Today, easier methods are available for cleaning the intestines. Taking an enema at home does the job. All you need is an enema kit. There is another technique in yoga to clean the intestines. It is called ‘Sankha Prakshalana’. It involves drinking about 5 liters of slightly warm saline water. The saline water does not get absorbed by the intestine. Instead it pulls out waste and toxins from the intestinal walls and throws it out through the rectum. A common practice today is to do the smaller version of Shanka Prakshalana called Laghu Shanka Prakshalana where only 2 liters of saline water is used. One has to go to the toilet multiple times (say 3 – 5 times) till plain water comes out of the rectum. This gives a complete cleaning of the intestinal tract.
- Neti – Neti is the process of nasal cleaning done using a small pot called Neti pot. It has a long spout on one side. It is filled with warm salt water. Then the spout is inserted into the left nostril. The practitioner bends his head to right side and lets the water from the left nostril into the nasal cavity, which then comes out of the right nostril. The pot is again filled with salt water and the process is repeated by inserting the spout in the right nostril and tilting the head to the left. This process cleans the nose and the sinus cavities, thus helping in relieving allergies, sinusitis, mild headaches and migraine. Neti can also be done using a rubber catheter. It is called Sutra Neti, where the catheter is inserted into one nostril and pulled out from the throat and out of the mouth. Then using gentle to and fro motion of the catheter tube, the nostril passage is cleaned. This it is repeated for the other nostril. Both forms of Neti have a de-sensitizing effect on the membranes inside the nose, thus relieving allergies, rhinitis, etc. It is said that Neti also stimulates certain nerve centers in the upper nasal passage.
- Trataka – Trataka develops concentration and removes mental disturbances. It involves gazing steadily at a point. Gazing on a steady candle flame is also practiced without blinking the eyes. This practice also improves eyesight and gives steadiness of mind.
- Nauli – Nauli is the practice of churning the abdominal muscles to the left and right repeatedly. Rotation of the muscles, clockwise as well as anti-clockwise is also practiced. This tones up all the organs in the abdomen and removes digestive disorders. It is a difficult practice in the beginning and may take a few months to master. The process involves isolating the ‘Abs’ muscles (also called the rectus abdominus muscle) on both sides of the abdomen and then using it to move and churn the internal organs. This improves the functioning of all organs in the abdomen. The four forms of Nauli practiced are Vama Nauli (using left Abs muscles), Dakshina Nauli (using right Abs muscles), Madhya Nauli (using both Abs muscles) and churning (rotation – clockwise as well as anti-clock wise) of the Abs muscles.
- Kapalabhati – Though many include Kapalabhati as a type pranayama, in the Hatha Yoga texts, it is classified under the Shatkarmas. It is a powerful cleaning process where the air is forcefully expelled from the lungs, removing any stagnant carbon dioxide accumulated in the lower parts of the lungs. In kapalabhati, the exhalation is forceful while the inhalation is normal. This process is repeated few rounds. It is said to be a cure for many diseases.
The Shatkarma practices are to be learned from an experienced yoga instructor. Regular practice of Shatkarmas can help to purify the body and maintain perfect health.