Vishnu is the protector of the world in Indian mythology. The Vishnu mudra is the symbol of God Vishnu. God Vishnu is a Hindu deity whose role is to protect humans and keep the universe in balance. It is one of the hand gestures called Vishnu Mudra (symbol of Vishnu), which is used to breathe through the nose during the Nadi Shodhana. Because some pranayama techniques say one nostril to breathe at a time, while the other nostril is lightly closed.