Priya Nath Karar, known in Hindu religion as Sri Yukteswar Giri (May 10, 1855-March 9, 1936) was the guru of Paramhansa Yogananda; his spiritual master and also his personal astrologer. He was a member of the Giri branch of the swami order, though his own guru, Lahiri Mahasaya, was not a swami. Yogananda titled Sri Yukteswar Jnanavatar, or "Incarnation of Wisdom".
He was born in Serampore, India, and married and had a daughter, joining the Swami Order after his wife's death. He converted his family home into a religious hermitage where Yogananda and other disciples studied.
His 1895 book The Holy Science seeks to show the unity of Eastern and Western religion, though its reliance on Hindu mythology as prehistory when scientific support for the past civilizations it claims existed has not been found presents an obstacle to the modern reader.
Sri Yukteswar is pictured at the extreme upper left of the crowd on the cover of the Beatles album Sgt. Pepper's Lonely Hearts Club Band.
SriYukteswar asserts that man is in a cycle of ages (each of 24,000 years): consisting of two golden ages, two silver ages, two bronze ages, and two iron ages with transmutation periods; this is in line with what the Laws of Manu (without interpolations) proposes.
SriYukteswar did not adhere to the elementary ground rules of present-day science when he formed his time-reckoning: He did not furnish evidence of the sort that is rooted in the universal, systemic web - and that part has to be furnished if a hypothesis and the like are to be looked on as theory.
SriYukteswar teaches that in the West the Spring point of the equinox axis is given the attention, and that in the East the autumn part of the axis is held to be of much value.