You are probably noticing what are called Mudras.  These hand positions (and even some body positions) are thought to help clear and enliven energy channels within the body.  Mudras are gestures or “seals” associated with Yoga as well as many traditions through out the world.

In Yoga, we are utilizing movement, breath, asana and mind practices that will communicate with our Central Nervous System to create a sense of peace and clarity.  We do this by interacting with the Nadis (subtle energy channels) of the body.  Mudras are one way in which we can work with these energetic channels.

The five fingers are associated with elements:  Thumb – fire, Index – air, Middle – Aakash, Ring – earth and the Little finger – water.  By the representation of the elements in our fingers we are able to move pranic energy through our hands and the channels of the nadis associated with these elements as well as the body parts associated with the elements.

For example, in meditation, when the mind wanders, it is said that either the element of Air is out of balance or that the Fire element is out of balance.  An example of Air out of balance would be having a million thoughts, one after the other.  Fire would be when we keep replaying a difficult conversation over and over in our head.  With either scenario, meditation is difficult.  We could place the index finger associated with the element of air in contact with the thumb (fire) and burn up those unwanted thoughts, or we could invite the grounding Earth element by placing the thumb and ring finger together (Placing our fire on the earth to give it support).  The use of either Mudra may calm the mind and allow us to remain in meditation.  We would have successfully moved the energy pattern in our mind and body allowing the mind to focus on the task at hand – meditation or stillness.

There are many books written about Mudras.  And many claims made about the use of Mudras.  I would encourage you to explore as many theories as possible to find your own comfort zone with Mudras.