With the guidance of Sufi saint Khureshia Fakir, Guru reported having several visionary experiences, which influenced the development of his teachings and mission.
Santhigiri Ashram attracted followers from diverse backgrounds, and many visited Karunakara Guru for spiritual guidance.
After reportedly attaining "spiritual completion" in 1973, Karunakara Guru promoted a worship system centered on the concept of Brahman, a universal deity.
At 14, he left his family home to join the Advaita Ashram in Aluva, which was associated with the Sivagiri Mutt founded by Narayana Guru.
Karunakara Guru spent 17 years at Sivagiri Mutt and its affiliated branches, immersing himself in spiritual studies and practices.