Shaivism

Shaivism or Saivism is the name given to a group of religious traditions which regard Lord Siva, also spelled as Shiva, as the highest Supreme Self or Brahman and worship Him accordingly. It is considered to be one of the oldest, if not the oldest, sect of Hinduism, whose antiquity is said to be rooted in the prehistoric traditions of ancient India, dating back to the Indus Valley civilization (5000 BC) or even earlier. Followers of Saivism are popularly known as Saivas or Saivites. The early Vedic Indians worshipped an aspect of Lord Siva, known as Rudra, whom they both feared and revered. In the later Vedic period some Upanishads emerged, such as the Svetasvatara Upanishad and the Katha Upanishad, in which Lord Siva was depicted as the highest Supreme Brahman. It was also the period during which the Vedic religion underwent a radical transformation where by Vaishnavism, Saivism and Shaktism rose to prominence and the ancient Vedic deities such as Brahma, Indra, Agni and Varuna yielded their place to  Vishnu, Siva and Shakti.