[xyupi]

To me, this song is always about the "truth" of Christianity, but I have never been aware of the "God spelled backwards is dog" part. Mr. Microphone could be the preachers, secret society being those who believe in Mary Magdalene (or to some truth of similar effect), then space dog being the "true" god, or Jesus. That is why "so sure we are on something". I am not going to share my thoughts on every line, but lyrically, Spacedog is really very tori-style. It looks like a bunch of bullshit, but it surely has very deep meaning.