Sit in utthan padasana with the right leg outstretched.
Keep the back straight and relax the whole body.
Perform khechari mudra and take a deep breath in.
While exhaling, bend forward and clasp the right big toe with both hands.
Keep the head erect, and the back as straight as possible, then slowly inhale, tilting the head slightly back.
Perform shambhavi mudra and then moola bandha.
Hold the breath inside and rotate the awareness from the eyebrow centre, to the throat, to the perineum, mentally repeating, 'ajna, vishuddhi, mooladhara'.
The concentration should remain at each chakra for only 1 or 2 seconds.
Continue the rotation for as long as the breath can be comfortably held without straining.
Release shambhavi and moola bandha.
Slowly exhale, returning to the upright position an then relax.
Contraindications
People suffering from high blood pressure or heart complaints should not perform this practice.
Maha mudra should not be performed without prior purification of the body.
Impurity is indicated by any symptoms of accumulated toxins such as skin eruptions.
As the practice of maha mudra generates a lot of heat it should be avoided in hot summers.
General Benefits
By the practice of maha mudra the combined benefits of shambhavi mudra, moola bandha and kumbhaka are gained.
Digestion and assimilation are stimulated and abdominal disorders are removed.
Maha mudra stimulates the energy circuit linking mooladhara with ajna chakra.
The whole system is charged with prana which intensifies awareness and induces spontaneous meditation.