Sanatana

The Kumaras are four sages (rishis) who roam the universe as children from the Puranic texts of Hinduism, generally named Sanaka, Sanatana, Sanandana and Sanatkumara. They are described as the first mind-born creations and sons of the creator-god Brahma. Brahma, who had received the knowledge of the Puranas from the Universal Being (god Himself) Narayana, imbibed this to his Four Kumaras (Sanat Kumaras). Sanat Kumaras then taught the Puranas to Narada. Narada transmitted it to Krishna Dwaipayana who in turn scripted them in monumental epic documents of 18 Puranas. The Vishnu Purana is recorded in two parts, the Vishnu Purana and Naradiya Purana. The teachings of Sankaka of the Kumara brothers are contained in the Naradiya Purana which is also divivided in two parts, the first part containing the teachings of Sanaka and others.