The literal translation of this mudra is three parts of a flag. As I reflect on this I am reminded of many things with three parts; a story or sonata, an atom, our government, the brain. My favorite uses of this mudra are to show the tree of life, the crown of Lord Vishnu (who is also part of a trinity with Lord Bramha and Lord Shiva), and flames rising from a ritual fire. 
Art and life from an Indian girl in the Midwest.
Journey with a Karmic Flower 