Mangal Yantra should be installed and worshipped to appease planet Mars. Mars is the planet of sheer raw energy which powers our actions. Mars represents our actions without any consideration of any reason behind them where as actions & energy of the planet Sun are controlled by reasoning. The planet Mars represents our Body Energy, Movement, Earth, Courage, Brothers, Sisters, War, Fire Arms, all inflammable products, Residential properties & Surgeons. It also represents Security services, Military, Police force, Soldiers and Army.