"Electric Church" was a belief held by Jimi Hendrix and his experience, as well as followers of psychedelic music that electric music (like The Jimi Hendrix Experience)brings out emotions, feelings and ideas in people, and encourages spiritual maturity. The influence the psychedelics have on one is truely amazing, I only wish more people appreciated this belief and genre. Jimi Hendrix considered "Electric Church" his religion, and based his third album "Electric Ladyland" on it.
When asked why he didn't name his then-new album "Electric Church" instead of "Electric Ladyland", Jimi said that some ladies were electric too. (then he laughed as if he were embarassed.)