Vishnu (/ˈvɪʃnuː/; Sanskrit: Viṣṇu) is a Hindu god, the Supreme God Svayam Bhagavan of Vaishnavism (one of the three principal denominations of Hinduism) and one of the three supreme deities (Trimurti) of Hinduism. He is also known as Narayana and Hari. As one of the five primary forms of God in the Smarta tradition, he is conceived as "the Preserver or the Protector" within the Trimurti, the Hindu Trinity of the divinity.
In Hindu sacred texts, Vishnu is usually described as having dark complexion of water-filled clouds and as having four arms. He is depicted as a pale blue being, as are his incarnations Rama and Krishna He holds a padma (lotus flower) in his lower left hand, the Kaumodaki gada (mace) in his lower right hand, the Panchajanya shankha (conch) in his upper left hand and the discus weapon considered to be one of the most powerful weapon according to Hindu Religion Sudarshana Chakra in his upper right hand.
Example via www.ramdass.org: Remembering God