Swami Vivekananda was a great Hindu saint and leader who founded the Ramakrishna Mission and Ramakrishna Math. We celebrate National Youth Day on 12 January every year on his birthday. He was a wonderful child with spiritual thoughts. His education was irregular, but he completed his BA degree from Scottish Church College. After meeting Sri Ramakrishna, his religious and saintly life started and made him his guru. After this he led the Vedanta movement and introduced the philosophy of Indian Hinduism to the western countries. Swami Vivekananda is one of the great men born in India. Through his great works, he brought great fame to Sanatan Dharma, Vedas and Gyan Shastra in the western world and gave the message of peace and brotherhood to the people all over the world. A world-renowned saint, Swami Vivekananda was born on 12 January 1863 in Calcutta. He was known as Narendra Nath Dutt in his childhood. His birth anniversary is celebrated every year in India as National Youth Day. He was one of the eight children of Vishwanath Dutt, a Calcutta High Court lawyer, and Bhuvaneshwari Devi. He was a smart student, however, his education was very irregular. He was a very religious and spiritual person and was popular for his knowledge of Sanskrit. Swami Vivekananda was a truth teller, a good scholar as well as a good sportsman. He was religious in nature since childhood and was very worried about the attainment of God. One day he met Sri Ramakrishna (priest of Dakshineswar Kali temple), then he was transformed due to the spiritual influence of Sri Ramakrishna. After accepting Sri Ramakrishna as his spiritual guru, he came to be called Swami Vivekananda. In fact, Swami Vivekananda was also a true guru devotee because even after getting all the fame, he always remembered his guru and brought glory to his guru, establishing the Ramakrishna Mission. Whenever there is talk about Swami Vivekananda, his Chicago speech is definitely discussed because that was the moment. When Swami Vivekananda introduced people to spirituality and Vedanta, changing the attitude of people about Hinduism all over the world through his knowledge and words. In this speech, he introduced the world to the subject of India’s Atithi Devo Bhava, tolerance and universal acceptance. He told that just as different rivers meet in the sea in the end, similarly all the religions of the world lead to God in the end and to stop the fanaticism and communalism spread in the society, we all have to come forward because without harmony And the full development of the world of brotherhood and humanity is not possible. Great men like Swami Vivekananda are born only once in centuries, who work to inspire people continuously even after their lives. If we follow what they have been told, then we can be successful in removing all kinds of bigotry and evil from the society.