Four mukhi represents the energy of Brihaspati, the guru of the Devas. The Brihaspati energy helps the wearer to gain knowledge and wisdom. The guru energy inherent in this Rudraksha helps in realizing all the four levels of knowledge - Jagrit or waking state, swapna or dream state, sushupti or deep sleep and turiya or super conscious state of consciousness. Four mukhi Rudraksha helps to attain knowledge of these four states of consciousness and dispels the darkness of ignorance.