Believer in the principle of "I and I," for the physical and spiritual selves (5)
I believe the answer is:
rasta
(Other definitions for rasta that I've seen before include "Follower of Rastafarianism" , "Bob Marley, for one" , "sectarian worshipper" , "Believer with dreadlocks" , "Dreadlocked person (abbr.)" .)