Man has to rise above the animal nature. He has to express his divine potencies. For this, man has to acquire Atmic knowledge (knowledge of the Self). Atma is the all-pervading Universal Consciousness. It is immanent in everyone. Only as long as this consciousness is present in the human body, it is called 'Sivam'. Once the consciousness leaves the body, it becomes 'Savam', a corpse.
(Sanathana Sarathi, August 1995, pg 220)