Mudra is the science of hand and finger postures. It can help to cure bodily ailments in a wonderful manner. It affects the body's energetic sysytem and the flow of prana (life energy) within it. It actually helps in balancing the five elements ( panch-tattvas ) in the human system to their optimal levels.
"Abhaya" means 'fearless' in Sanskrit. This mudra is a sign of benevolence and peace.
"Dhyana" connotes 'meditation' in Sanskrit. This mudra is assumed during meditation.
"Gyana" refers to 'knowledge' in Sanskrit.
"Linga" or "angustha" refers to 'thumb' in Sanskrit.
"Air" is referred to as 'Mritsanjeevani' in Sanskrit. This mudra helps in balancing the air element in your body.
"Prithvi" means 'earth' in Sanskrit. This mudra restores balance of the earth element in your body.
"Shunya" refers to 'zero' or 'sky' in Sanskrit. This mudra helps to connect your mind.
In Sanskrit, "Surya" means 'sun'. Sun is the source of energy. This mudra provides energy.
In Sanskrit, "vaayu" connotes 'air'. Air element of the body gets properly balanced with this mudra.
"Varuna" means 'water' in Sanskrit. This mudra helps maintain balance of water in your body.