Swami Shivananda (1854–1934), born Tarak Nath Ghosal, was a Hindu spiritual leader and a direct disciple of Ramakrishna, who became the second president of the Ramakrishna Mission. His devotees refer to him as Mahapurush Maharaj. Shivananda and Subodhananda were the only direct disciples of Ramakrishna to be filmed. He was a Brahmajnani. Shivananda introduced the celebration of the birthdays of his brother-monks. He was known to have laid the foundation stone of Shri Ramakrishna Temple at Belur Math, which was designed by Vijnanananda.

Ramakrishna, also called Ramakrishna Paramahansa, born Ramakrishna 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.