What is "trigunatitananda"

Trigunatitananda (30 January 1865 – 10 January 1915), premonastic name Sarada Prasanna Mitra, was a direct disciple of Ramakrishna, the 19th-century Indian Hindu mystic and sant. He established the monthly Bengali magazine Udbodhan of Ramakrishna Math and later, at the behest of Vivekananda, went to America in 1902 and took charge of the San Francisco centre. One of his contributions was the construction of a new building in San Francisco which came to be known as the Hindu Temple. He was mortally injured by a bomb thrown at him by a former student, and died in January 1915.