Why is there a picture of Jesus on Ananda’s altars? What connection is there between the Ananda’s line of Gurus and Christ?
Paramhansa Yogananda answers it thus in his Autobiography of a Yogi:
The Mahavatar [Babaji] is in constant communion with Christ; together they send out vibrations of redemption, and have planned the spiritual technique of salvation for this age. The work of these two fully-illumined masters–one with the body, and one without it–is to inspire the nations to forsake suicidal wars, race hatreds, religious sectarianism, and the boomerang-evils of materialism.
Yogananda’s mission to the West included showing the essential oneness of original Christianity as taught by Jesus, and original yoga as taught by Krishna. For these reasons, it is both fitting and natural that pictures of Jesus are included on Ananda’s altars.