Patanjali's Yoga Sutras

Swami Vivekananda (12 January 1863 – 4 July 1902), born Narendranath Datta was an Indian Hindu monk, philosopher, author, religious teacher, and the chief disciple of the Indian mystic Ramakrishna. He was a key figure in the introduction of Vedanta and Yoga to the Western world. He is credited with raising interfaith awareness and bringing Hinduism to the status of a major world religion in the late nineteenth century Born into an aristocratic Bengali Kayastha family in Calcutta, Vivekananda was inclined from a young age towards religion and spirituality. At the age of 18 he met Ramakrishna, later becoming a devoted follower and sannyasin (renunciate). After the death of Ramakrishna, Vivekananda toured the Indian subcontinent as a wandering monk and acquired first-hand knowledge of the often terrible living conditions of Indian people in then British India. In 1893 he traveled to the United States where he participated in the Parliament of Religions in Chicago. Here he delivered a famous speech beginning with the words: "Sisters and brothers of America ..." introducing the ancient Hindu religious tradition to Americans and speaking forcefully about the essential unity of all spiritual paths, and the necessity of embracing tolerance and renouncing fanaticism. The speech made an extraordinary impression. One American newspaper described him as "an orator by divine right and undoubtedly the greatest figure at the Parliament". After the great success of the Parliament, Vivekananda delivered hundreds of lectures across the United States, England, and Europe, disseminating the core tenets of Hindu philosophy. He founded the Vedanta Society of New York and the Vedanta Society of San Francisco (now Vedanta Society of Northern California), which became the foundations for Vedanta Societies in the West. In India, he founded the Ramakrishna Math, which provides spiritual training for monastics and householders, and the Ramakrishna Mission, which provides charity, social work and education.