The Gyan mudra represents the starting place or home. It takes you back to your roots, or a simpler time. Clears the mental faculties.
This pose is the most important of all mudras. It promotes wisdom, memory and intelligence. Meditation and deep breathing are practiced in this pose. It is very effective in children to control their tantrums, bad behavior and obstinacy. Effective in cases of mental ailment, imparts happiness, the intellect develops, memory is sharpened.
Method Join the tips of the index finger and thumb and keep the other 3 fingers stretched and joined
APAN MUDRA
Earth Connection
The Apana mudra has a grounding force to help you connect with the earth's energies whenever you are feeling off balance or flighty.
Mainly used for detoxification, meaning the removal of poisons from the system, caused by pollution in the air we breath, the food we eat that does not agree with us, the allergens, the chemicals and detergents, the negative attitudes and even poisons of snakes, insects, etc.
It help to cure kidney and bladder problems, promotes good digestion and elimination.
Method Tips of thumb, middle and ring finger are joined gently. Pinky and index fingers are extended.
Shunya Mudra
The Shunya mudra prevents and cures deafness, pain in the ears and other problems with hearing. It is very effective, especially when done with the Akash Mudra.
Fold the middle finger to the middle of the hand to touch it. Close the thumb over the middle finger while the other three fingers are straight up.

Akash Mudra
In this mudra the middle finger forms a circle with the thumb. This hand pose has even cured bleeding in the ears.

Surya Mudra
This helps cure obesity. It controls hunger and temptation for food and changes the metabolism so that it is easy to lose weight and maintain it in a natural way all your life. Fold the ring finger to the inside of the hand and the thumb over it. The remaining fingers are straight and up.

Vayu Mudra
Prevents and cures arthritis, rheumatism, pain in any part of the body, gas in the stomach, hysteria and paralysis. Fold the index finger to the hand and the thumb over it.

Prana Mudra
Prana literally means LIFE. With the life giving energy of this mudra, every kind of infection and illness is overcome; the eyes have better vision; immune system improves, heart disease is cured. Most of all you will obtain a lot of self-confidence. Fold the little finger and the ring finger to the thumb to form a circle.

Prithvi Mudra
Prithvi means MOTHER EARTH. Just as a mother nurtures her children this mudra cure weakness, debility, fatigue, undue thinness and depression.
Hold the ring finger to the thrumb to form a circle.

MRIT SANJIVINI MUDRA
In the case of severe heart attack, this life giving divice Mudra provides instant relief within a few seconds.
Helping hand for Cardiacs.
First Aid for Heart Problems.

Mudras can bring about miraculous change and improvement in our body.
Mudras generate Powers to provide all round development of mind & body which brings peace and happiness.
Mudras look like miraculous remedies. They provide instant relief in many illnesses.
Mudras can cure almost any ailment from simple earache to heart attack.
Mudras help in moulding the Physical, Mental and even the Moral aspects of the individual.
Some Mudras can balance the elements of the body within 45 minutes while some are fast enough to act within a few seconds.
Practice of some of the Mudra's regularly can cure Insomnia, Arthritis, improves memory.
Mudras have extra ordinary powers, practice of mudras brings about a quick and fundamental reversions of the destructive changes in the human body. They also develop virtuousity, social amiability, non-violence, piety and courteous dispositions.
Mudra helps in Kundalini Yoga to awaken the Cosmic Energy and to unite consciousness of inner Supreme Soul.
Mudras are significant and simple yogic function by which one can develop internal and external dispositions.
Detailed description of Mudras are found in Tantra Shastra, Upasana Shastra, Nritya Shastra, Art of Sculpture etc.