By Siri Singh Sahib Bhai Sahib Harbhajan Singh Khalsa Yogiji
Excerpted from Kundalini Yoga for Youth and Joy (Page 8 and 9)

I'd like to share the technology and science of a type of massage with you. It is called hydrotherapeutical massage. As I'm sitting before you, my first qualification and field of expertise is in hydrotherapy. You may not have known that, and there is no one else with this qualification in the whole world. I carry the lineage of those who now are very unknown, but who once were worshipped. They worked on the bones, adjusted the body and did massage to recreate healthy organs.

Since ancient times, people have prayed for the blessing of Ishnaan. What is ishnaan? Ishnaan is the total sum of hydrotherapy. The word is ishnaan. We don't say we'll take a bath; we never say "bath." Ishnaan is when the body by its own virtue creates the temperature that it can beat off the coldness of the water. Ishnaan is not just wetting your body. There is a whole respect to it. There is a whole grace to it.

The power of water is sixty percent of the power of the human. In hydrotherapy we believe that the sixty percent water in the body can be totally exchanged in sixty minutes with outside water. We do ice cold water massage and not only do we open up the capillaries, but then, when they close down again, that is, return to normal, that blood goes back to the organs. The heart, kidneys, lungs, liver - each organ has its own blood supply. In this way, the organs get their flushing. When the organs get a flushing, then immediately the glands have to change their secretion. It is a law. And when the glands change, the guardians of the health and life change, youth returns. What is youth? Young glands. Young glands are called youth. If your glandular system secretes correctly the blood chemistry is a young chemistry, and the glands can be made to do it. All this neurotic neurosis and angriness will all be over.

This science of hydrotherapy is very precise and sophisticated, and very simple. If you take a cold shower and let it fall just below the lower lip for ten or fifteen minutes, you will be bright and your mind will be very clear. If you put the water between the eyebrows and the upper lip, you will be very energetic. And if you put the water on the forehead, you will be so sleepy that you can't match it. If you massage the upper arm under a very cold shower from your elbow to just below your shoulder on your upper arm, you are totally curing your stomach. From your elbow to about two inches above your wrist corresponds to your digestive tract. Two inches above the wrist to the start of the wrist corresponds to your heart. The wrist corresponds to your liver and the finger tips correspond to your brain.

Then if you put the water on your neck in the front and let the water run down your entire body and hands, you will totally change all your cells. And if you let the water hit your chest and go all the way down to your genitals and you stay under it for a while, you are totally changing the chemistry of the blood from unhealthy to healthy. If you let the water hit your feet and massage the right foot with the left foot, and the left foot with the right foot, you are actually massaging your entire body. Stand before a cold shower and massage your feet and your calves by yourself. Use your feet to massage, don't use your hands. Then stand away from the water and using both hands, massage your entire body and let the body get hot.  Then take a cold shower again and massage your body again. Do that for about twelve to fifteen minutes. You should have a friend handy to pull you out. You will be in a totally different space.

Your body will be totally rebuilt. Each organ will be rebuilt. How? When you take a cold shower, your blood rushes out to meet the challenge. This means all the capillaries open up and all the deposits have to go. Everything is cleaned; it is a very cleansing process. During hydrotherapy, the body is challenged by the cold water and by massaging the body, it can meet this challenge and not feel cold.