Shri Shiva (also known as Shiwa and Śiva; Sanskrit: शिव) is a divine personality (Ishvara) in Hinduism. Meaning of the word Shiva: In the texts of the Vedas and the Tantras and other sources, three meanings of the term Shiva emerge. The first and most important meaning of Shiva is well-being. Shiva is often seen as someone who promotes well-being in various ways (by taking on various roles). To embody all those ways or roles, Shiva is often depicted with five different faces: two on the left side, two on the right side, and one in the middle. The second meaning of Shiva is "supreme knowledge or knowledge of the Supreme Being (without attributes) beyond all existential limitations." The third meaning is the person Sadáshiva, who was born in India about seven thousand years ago. Sadá means "always" and Shiva means "well-being." Sadāśhiva means "someone whose sole purpose of existence is to promote the overall well-being of all beings." Meaning of the arrival of Shiva: The first form of Shiva (Rudra) emerged at the end of the Rig Veda period and at the beginning of the Yajur Veda period. Many Aryans had already entered India, and many more would come. The rishis were the leaders of the clans who traveled in their chariots. This theory, also known as the Aryan invasion theory, has now been rejected. This theory was invented in the past by Western invasion leaders in order to continue oppressing the darker-skinned population. You can read more about this on the following Wikipedia page: Aryan invasion theory The collective teachings of those rishis (sages) and munis (scholars), which were called Arsha Dharma, were constantly subject to changes. For example, over time, from one Veda to another, the system of recitation and pronunciation of mantras changed. Saivism as a form of Bhakti presumably emerged in South India in the fifth century AD.