Lord Shiva is Shaivism’s supreme God, and is also known as Lord Mahadev, Lord Mahesh, and Lord Bholenath. In scriptures, He is depicted in the following benevolent forms:
An omniscient Yogi leading an ascetic life on Mount Kailash
A celestial householder living with His wife Goddess Parvati, and sons namely, Lord Ganesha and Lord Kartikeya
In His abstract form, Shivji is worshipped as a Lingam, also known as a Shivling. This representation portrays His limitless, transcendent, unchanging, and formless qualities.