Shiva (Sanskrit: Auspicious One), or Siva, is one of the main Deities of Hinduism, worshiped as the paramount lord by the Saivite sects of India. Shiva is one of the most complex gods of India, embodying seemingly contradictory qualities. He is the destroyer and the restorer, the great ascetic and the symbol of sensuality, the benevolent herdsman of souls and the wrathful avenger.
Monday is dedicated to Lord Shiva. It is said that Lord Shiva is easily pleased. Therefore many people observe Upvaas on Monday. Those devotees observing fast only eat food once. People visit Lord Shiva shrines and conduct pujas, especially, Ardhanarishwara puja. The mantra ‘Om Namah Shivaya’ is chanted continuously. Siva devotees also read Shiva Purana. Unmarried women observe the Vrat to get good husbands. Others observe it for a happy and prosperous family life.