His famous speech at the Parliament of the World's Religions in Chicago in 1893, where he addressed the audience as sisters and brothers of America, introduced the concept of universal religion and earned him worldwide recognition. Third, spreading Vedanta and yog in the west, swami Vaikanand introduced the philosophy of Vedanta and the practice of yoga to the Western world, particularly in the United States. He traveled extensively, delivering lectures, and conducted classes on vedanta, philosophy, spirituality and yoga practices