Yoga in the United States has a long history, foreshadowed in the 19th century by the philosophers Ralph Waldo Emerson, whose poem "Brahma" is a statement of the Hindu philosophy behind yoga, and Henry David Thoreau, and starting in earnest with the Hindu leader Vivekananda's visit from India in 1893; he presented yoga as a spiritual path without postures (asanas), very different from modern yoga as exercise. Two other early figures, however, the women's rights advocate Ida C. Craddock and the businessman and occultist Pierre Bernard, created their own interpretations of yoga, based on tantra and oriented to physical pleasure.