First off had I known how easy it would have been to receive deliverance from Bi-polar manic depression I would have commanded the devils to leave long ago.
I became a Christian in 1986.
In 1982 I prayed to the cosmos through a stupid book on how to learn ESP, extra sensory perception. Two evil spirits entered me way back then. Praying to something else and not God gave them the right to enter.
Simply becoming a Christian four years later did not permanently remove those Demons.