The word kayaklesha is found to have been used in the context of the asanas. What does kayaklesha mean? The meaning of this word too has not been correctly understood. The word kayaklesha is supposed to mean torturing the body. In reality, however, this is not what kayaklesha implies. It actually means restricting the body or training the body. It means training the body to such an extent that one would have no difficulty in standing even for ten days if necessary. Nor would it be difficult to do kayotsarga by stretching for ten days together. There would be no difficulty in sitting in the same posture for several days. Let the body be trained so much, the sinews are made so flexible and all the muscles and other cells connected with the sinews he brought in such a perfect balance that the body should cause no obstruction of any kind.