Sit in sukhasana(any comfortable pose), adopt any mudra.
Keep your spine straight and take few deep breathes to make your mind focused and relaxed, bring focus inwards on your breathing.
Make a short inhalation and then start exhaling slowly, using all the respiratory muscles, without any break.
After completing the exhalation start inhaling smoothly and completely, without retaining the breath.
Take few normal breaths, and repeat the process.
While doing this practice, focus on your breathings and feel the positive vibrations inwards.
Continue the same process for few more times or as much as you can according to your capacity and preferences.
Maintain silence for few minutes and observe the benefits of rechak.
Practice Keynotes
Keep focus on your breathings.
Try to observe on your mind.
Cautions and Limitations
Those suffering from heart ailments should not attempt retention of breath.
Under no circumstance should the breath be forced. Never breathe through the mouth.
Proceed carefully and only under expert guidance. At the slightest sign of discomfort, reduce the duration of inhalation/ exhalation/retention and, if necessary, discontinue the practice.
Pranayama should never be rushed.
Person with breathing ailments must consult the suitability of pranayama with their doctor.
Contraindications
People with heart disease, avoid this practice.
Don't do this practice if you have asthma.
General Benefits
Beneficial for respiratory system.
A large volume of carbon dioxide is expelled from aleveoli.