Shat Kriyas or Yogic cleansing processes are an integral part of yoga as they help eliminate accumulated toxins from the system. The body functions like a machine and like a machine it has to be continuously cleaned and maintained. It is this cleansing of toxins like mucus, gas, acid, sweat, urine and stool that improves its functioning. Kriyas also help prepare the body and condition it for the proper practice of yogasana and pranayama.