Kriya:
(in Sanskrit "action, deed, effort") most commonly refers to a "completed action", technique or practice within a yoga discipline meant to achieve a specific result. Types of kriya may vary widely between different schools of yoga.

  Firing up the Metabolism Kriya
  1. Lie down on your back. Raise your legs toward the ceiling and grasp your toes. Keep your legs up while you open and close them rapidly. Do Breath of Fire, timing the breath with the opening and closing of the legs.5-1/2 minutes.
     

  2. Remain in the same position, holding onto your toes with your legs up. Pull your left foot toward your head. Let your left leg go back to the starting position as you pull your right foot toward your head. Continue alter-nately moving your legs up and down. Breath of Fire through the nose. 2 minutes.
     

  3. Continue the previous movement chanting Har with the tip of the tongue as each leg moves. Move quickly; chanting Har at a pace of two times per second.12 minutes.
     

  4. Stay in the same position and combine the movements of exercises 1 and 2. Chant Har as your left leg moves up and down. Chant Har as your right leg moves up and down. Chant Mukanday as you open and close your legs. One repetition of Har Har Mukanday takes 2 seconds. Move quickly. 1-1/2 minutes.
     

  5. Sit up and relax for 1 minute.
     

  6. Sit in Easy Pose with the elbows bent and the palmsfacing forward at the level of the shoulders. The thumb and Sun Finger touch in Surya Mudra. Close your eyes and chant Har, Har Mukanday rhythmically and musically for 11 minutes. One repetition of the mantra takes 2 seconds.
     

Yogi Bhajan • March 6, 1985

Kundalini Yoga Kriya to Boost Your Immune System:

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Sit in easy pose (Sukhasana) - or on a chair, with your chin in and your chest out. Stick your tongue all the way out and keep it out as you rapidly breathe in and out through your mouth. This is called Lion Breath(or dog breath). Continue the panting diaphargm breath for 3-5 minutes.

To finish: inhale, hold your breath 15 seconds, press the tongue hard against the upper palate. Exhale. Repeat this sequence two more times.

This exercise brings energy to your immune system to fight infection. It is a very healing exercise. When you feel a tingling in your toes, thighs, and lower back it is an indication that you are doing the exercise correctly.

© The Teachings of Yogi Bhajan, January 31, 1996.  Published with permission from the Kundalini Research Institute.  For more information on this Kriya and to view other valuable information on the practice of Kundalini yoga and the teachings of Yogi Bhajan, please visit the website of the 3HO organization:  http://www.3ho.org/kundalini-yoga/kundalini-yoga-yb/kriyas-meditations/featured-meditations/