SWAMI VIVEKANANDA.

 Born into an aristocratic Bengali Kayastha family in Calcutta, Vivekananda was inclined from a young age towards religion and spirituality. He later found his guru, Ramakrishna, and became a monk. After the death of Ramakrishna, Vivekananda extensively toured the Indian subcontinent, acquiring first-hand knowledge of the living conditions of Indian people in then British India. Moved by their plight, he resolved to help his country men, and found a way to travel to the United States, where he was highly successful. In India, Vivekananda founded the Ramakrishna Math, which provides spiritual training for monastics and householder devotees, and the Ramakrishna Mission, to provide charity, social work and education.[7] Vivekananda was also a major force in contemporary Hindu reform movements, and contributed to the concept of nationalism in colonial India.[14] He is regarded as a patriotic saint, and his birthday in India is celebrated as National Youth Day.[15][16]