

Young Hindu priests gather in the morning by Pushkar's holy lake for training in rituals and chanting. Rajasthan, India.
The act of gently pulling the ears is called Palikarsha in Sanskrit. This is usually performed at the beginning of worship in front of Ganesha. Hands are crossed with the right hand pulling on the left ear lobe and the left hand pulling on the right ear lobe. It is often performed standing up, inhaling as you bend down at the knees and exhaling as you stand up straight again. This act mystically stimulates important nerve currents in the body that internalizes awareness preparing the devotee for worship and meditation.
Doctors have only recently discovered this ancient Hindu practice through their medical research. Some call this "new" discovery super brain yoga. See this link to read an article on super brain yoga and here's also a YouTube video on the same topic.