Swami Vivekananda (1863-1902), was the chief disciple of Sri Ramakrishna Paramahamsa, who transmitted to him by grace the state of samadhi, which gave him a great spiritual understanding. He applied spirituality even to politics, and taught globally about Vedantic philosophy, including a famous speech at the World Parliament of Religions in Chicago, 1893. He was considered one of the most influential spirits of the Hindu religion.