In each manavantara Brahma creates seven exceptional sages from his mind, who represent supreme knowledge and righteousness. It is their duty to see that law and order is maintained in the Universe.
Amar Chitra Katha brings the story of the foremost of all yogis, the barefoot god with matted locks and animal-skin robes. He is the one who manifests energy and is limitless. He is known to be gentle, benevolent and almost indulgent towards his devotees, and ruthless towards those who destroy the balance of the world with their evil ways. He is Shiva, also called Mahadeva.