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fresh air. Make sure that adequate toilet facilities are nearby.
The practice is best undertaken with a group of friendly people. The atmosphere should be relaxed and lighthearted, with no apprehension concerning the practice as this can create tension and prevent free bowel movement. Climate: Shankhaprakshalana should not be performed when the weather conditions are extreme. Those who live in cold climates should practise in the summer when the days are warm and dry. This is important, as it is easy for the stomach and intestines to become chilled. On the other hand, do not practise when it is very hot for this would produce too much sweat and the experience would be exhausting.
Very cloudy, windy or rainy weather is also to be avoided.
The best time to practise is at the changeover of seasons. Frequency: This practice should not be performed more than
twice a year.
Duration: The whole day should be put aside for this practice and the following day for rest.
Precautions: It is important not to exceed the point beyond which almost clear water is being passed, as the system may start producing bile, indicated by bright yellow water. It is better to stop when the water is still slightly cloudy. While resting for 45 minutes after terminating the practice, one should not sleep as a headache or cold may result. No water or other fluids should be taken until at least 2 hours after the first special meal. Cold liquid will chill the digestive system. Drinking or eating anything before the prescribed period will dilute and wash away the new protective layer which is being reproduced by the body on the stomach and intestinal wall.
Fans and air conditioning should not be used until the evening as the body must be kept warm to prevent chills and fever. If it is at all cold the body should be covered with a blanket to maintain the inner body temperature. Sitting in the hot sun, near a fire or doing physical exercise should also be avoided.
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