What is mudra yoga?

Indian classical dancers fold their fingers in various mudras. At Khajuraho, or even in the murals of Ajanta, figurines are almost invariably depicted with fingers in a mudra. It is little known, however, that mudra vigyan is Tatva Yoga-an essential aspect of yoga. And, believes Acharya Keshav Dev, these mudras can help cure many diseases

Mudras never generate an excess of energy, they simply seek an optimal balancing of prana, much like a thermostat. So next time you are ailing, remember it may just be an instance of maladjusted prana and an innocuous sleight of hand could be the cure.