Har Har Mahadev...

Shiva , also known as Mahadeva, Mahesh ("Great God") or Bholenath ("Simple Lord"), is a popular Hindu deity and considered the Supreme God within Shaivism, one of the three most influential denominations in Hinduism. Shiva is regarded as one of the primary forms of God, such as one of the five primary forms of God in the Smarta tradition, and "the Destroyer" or "the Transformer" among the Trimurti, the Hindu Trinity of the primary aspects of the divine. Shiva is also regarded as the patron god of yoga and arts.

 Shiva is usually worshipped in the aniconic form of Lingam. Shiva of the highest level is limitless, transcendent, unchanging and formless. However, Shiva also has many benevolent and fearsome forms. In benevolent aspects, he is depicted as an omniscient yogi who lives an ascetic life on Mount Kailash, as well as a householder with wife Parvati and two sons, Ganesha and Kartikeya or as the Cosmic Dancer. In fierce aspects, he is often depicted slaying demons. The most recognizable iconographical attributes of the god are a third eye on his forehead, a snake around his neck, the crescent moon adorning and the river Ganga flowing from his matted hair, the trishula as his weapon and the damaru as his instrument.

 Third eye: (Trilochana) Shiva is often depicted with a third eye, with which he burned Desire (Kāma) to ashes, called "Tryambakam" (Sanskrit: त्र्यम्बकम् ), which occurs in many scriptural sources. In classical Sanskrit, the word ambaka denotes "an eye", and in the Mahabharata, Shiva is depicted as three-eyed, so this name is sometimes translated as "having three eyes". However, in Vedic Sanskrit, the word ambā or ambikā means "mother", and this early meaning of the word is the basis for the translation "three mothers".These three mother-goddesses who are collectively called the Ambikās. Other related translations have been based on the idea that the name actually refers to the oblations given to Rudra, which according to some traditions were shared with the goddess Ambikā.It has been mentioned that when Shiva loses his temper badly, his third eye opens which can destroy most of the things to ashes.