Swami Vijnanananda was an Indian monk of Ramakrishna order, born in an upper-class family near Dakshineswar, and was a direct disciple of Ramakrishna. He was an engineer and worked as the District Engineer in the erstwhile State of United Provinces, India. He was a great scholar of Sanskrit with expertise in religio-philosophical works, astronomy, civil engineering etc. He spent considerable time in Allahabad (Prayag) centre of Ramakrishna Math. He became the President of Ramakrishna Mission in 1937. It was under his presidency and direct supervision that the Ramakrishna Temple at Belur Math was constructed and consecrated.

Ramakrishna, also called Ramakrishna Paramahansa, born Gadadhar Chattopadhay, was an Indian Hindu mystic. A devotee of the goddess Kali, Ramakrishna after adhering to various religious practices from the Hindu traditions of Vaishnavism, Tantric Shaktism, and Advaita Vedanta, as well as from Islam and Christianity, proclaimed that various world religions are "so many paths to reach one and the same goal", thus validating the essential unity of religions. His parable-based teachings espoused the ultimate unity of diverse religions as being means to enable the realization of the same God. He is regarded by his followers as an avatar or divine incarnation of God.