Swami Vivekananda (1863–1902) was an Indian Hindu monk and a key figure in the introduction of Indian philosophies of Vedanta and Yoga to the western world. He was one of the most influential philosophers and social reformers in his contemporary India and the most successful and influential missionaries of Vedanta to the Western world. Indian Nobel laureate poet Rabindranath Tagore's suggested to study the works of Vivekananda to understand India. He also told, in Vivekananda there was nothing negative, but everything positive.