Swami Abhedananda (2 October 1866 – 8 September 1939), born Kaliprasad Chandra, was a direct disciple of the 19th century mystic Ramakrishna Paramahansa and the founder of Ramakrishna Vedanta Math. Swami Vivekananda sent him to the West to head the Vedanta Society of New York in 1897, and spread the message of Vedanta, a theme on which he authored several books through his life, and subsequently founded the Ramakrishna Vedanta Math, in Calcutta (now Kolkata) and Darjeeling.

He was born in north Calcutta on 2 October 1866 and was named Kaliprasad Chandra.[1] His father was Rasiklal Chandra and his mother was Nayantara Devi. In 1884, at the age of 18, while studying for the school final examination under the University of Calcutta, he went to Dakshineswar and met Sri Ramakrishna. Thereafter, in April 1885, he left home to be with him, during his final illness, first at Shyampukur and then at Cossipur Garden-house near Calcutta.

After his Master's death in 1886, he plunged into intense sadhana (meditations), by shutting himself up in a room at the Baranagar matha, this gave him the name "Kali Tapaswi" amongst his fellow disciples.[1] After the death of Ramakrishna, he formally became a Sanyasi along with Vivekananda and others, and came to be known as "Swami Abhedananda Puri".[2]

For the next ten years, of his life as a monk, he travelled extensively throughout India, depending entirely on alms. During this time he met several famous sages like Pavhari Baba, Trailanga Swami and Swami Bhaskaranand. He went to the sources of the Ganges and the Yamuna, and meditated in the Himalayas. He was a forceful orator, prolific writer, yogi and intellectual with devotional fervour.