>>20799884BTW Pashupati. Yoga date back to Harrapan IVC with him, a horned figure with several faces cross-legged/meditating around animals, looking like Cernunnos, which is a primitive form of Lugh (another god associated with Mercury), which is interesting since that there is a statue of Shiva at CERN which is in Switzerland, a Celtic land.
Now Shiva is considered to be the first Yogi, and his tradition is said to date back long before most traditions, he is one of the first and prime gods in latter hinduism, but still there is a representation in IVC, which may indicate some form of physical exercise regiment created to keep peoples transferring from active lifestyles of hunter gatherers, herders to more sedentary and urban lifestyles and to instill in them calm and disabuse notions and need to be restless.
Angry Shiva, in his Prototypical Rudra form, was the destroyer of Asura that is the Iranians. The imagery is of someone who despises Iranian Panis and Dahyus for threatening Vedic Aryans. But since it known that Vedic Aryans were very bad at naming new things, they named the Indian natives, Asura born, demons and Mayavis Once inside India, Shiva actually becomes a sympathetic figure to Asuras, social outcasts and lower castes, is hated by Vishnu worshipping Brahmins, becomes patron deity of mostly non-Aryan societies and it is very clearly depicted in the Puranic traditions. The competitive aspect of Vishnu and Shiva is the core of Shiva's marriage to Shakti, the daughter of a prominent Aryan King who sees Shiva as unacceptable. Like Romeo and Juliet, Shakti falls in love with Shiva but dies when King disrespect Shiva.
An angry Shiva here goes ahead and behead the King. Throughout the stories, he is benign to Asuras (now natives) and cares for their well-being but due to Aryan influence (biased narrative) act against them. The famous native King Ravana was a supreme Shiva worshipper and Aryan narrative of Ramayana glorifies his killing.