Born into an aristocratic Bengali family of Calcutta, Vivekananda was inclined towards spirituality. He was influenced by his Guru, Ramakrishna Deva, from whom he learnt that all living beings were an embodiment of the divine self; therefore, service to God could be rendered by service to mankind. After Ramakrishna's death, Vivekananda toured the Indian subcontinent extensively and acquired first-hand knowledge of the conditions prevailing in British India. He later travelled to the United States, representing India at the 1893 Parliament of the World Religions. Vivekananda conducted hundreds of public and private lectures and classes, disseminating tenets of Hindu philosophy in the United States, England and Europe. In India, Vivekananda is regarded as a patriotic saint and his birthday is celebrated there as National Youth Day.
Swami Vivekananda, known in his pre-monastic life as Narendra Nath Datta, was born in an affluent family in Kolkata on 12 January 1863. His father, Vishwanath Datta, was a successful attorney with interests in a wide range of subjects, and his mother, Bhuvaneshwari Devi, was endowed with deep devotion, strong character and other qualities. A precocious boy, Narendra excelled in music, gymnastics and studies. By the time he graduated from Calcutta University, he had acquired a vast knowledge of different subjects, especially Western philosophy and history. Born with a yogic temperament, he used to practise meditation even from his boyhood, and was associated with Brahmo Movement for some time.
With Sri Ramakrishna
At the threshold of youth Narendra had to pass through a period of spiritual crisis when he was assailed by doubts about the existence of God. It was at that time he first heard about Sri Ramakrishna from one of his English professors at college. One day in November 1881, Narendra went to meet Sri Ramakrishna who was staying at the Kali Temple in Dakshineshwar. He straightaway asked the Master a question which he had put to several others but had received no satisfactory answer: “Sir, have you seen God?” Without a moment’s hesitation, Sri Ramakrishna replied: “Yes, I have. I see Him as clearly as I see you, only in a much intenser sense.”
Apart from removing doubts from the mind of Narendra, Sri Ramakrishna won him over through his pure, unselfish love. Thus began a guru-disciple relationship which is quite unique in the history of spiritual masters. Narendra now became a frequent visitor to Dakshineshwar and, under the guidance of the Master, made rapid strides on the spiritual path. At Dakshineshwar, Narendra also met several young men who were devoted to Sri Ramakrishna, and they all became close friends.
Difficult Situations
After a few years two events took place which caused Narendra considerable distress. One was the sudden death of his father in 1884. This left the family penniless, and Narendra had to bear the burden of supporting his mother, brothers and sisters. The second event was the illness of Sri Ramakrishna which was diagnosed to be cancer of the throat. In September 1885 Sri Ramakrishna was moved to a house at Shyampukur, and a few months later to a rented villa at Cossipore. In these two places the young disciples nursed the Master with devoted care. In spite of poverty at home and inability to find a job for himself, Narendra joined the group as its leader.
n 1884, Naredranath underwent a considerable financial distress due to the death of his father as he had to support his mother and younger siblings. He asked Ramakrishna to pray to the Goddess for the financial welfare of his family. On Ramakrishna’s suggestion he himself went to the temple to pray. But once he faced the Goddess he could not ask for money and wealth, instead he asked for ‘Vivek’ (conscience) and ‘Bairagya’ (reclusion). That day marked the complete spiritual awakening of Narendranath and he found himself drawn to an ascetic way of life.
Life of a Monk
During the middle of 1885, Ramakrishna, who had been suffering from throat cancer, fell seriously ill. In September 1885, Sri Ramakrishna was moved to Shyampukur in Culcutta, and a few months later Narendranath took a rented villa at Cossipore. Here, he formed a group of young people who were ardent followers of Sri Ramakrishna and together they nursed their Guru with devoted care. On 16 August 1886, Sri Ramakrishna gave up his mortal body.
After the demise of Sri Ramakrishna, around fifteen of his disciples including Narendranath began to live together in a dilapidated building at Baranagar in North Calcutta, which was named Ramakrishna Math, the monastic order of Ramakrishna. Here, in 1887, they formally renounced all ties to the world and took vows of monkhood. The brotherhood rechristened themselves and Narendranath emerged as Vivekananda meaning "the bliss of discerning wisdom". 
The brotherhood lived off on alms donated voluntarily by patrons during holy begging or ‘madhukari’, performed yoga and meditation. Vivekananda left the Math in 1886 and went on a tour of India on foot as a ‘Parivrajak’. He travelled the breadth of the country, absorbing much of the social, cultural and religious aspects of the people he came in contact with. He witnessed the adversities of life that the common people faced, their ailments, and vowed to dedicate his life to bring relief to these suffering