Spaced Out

OK. I’ve finished The Planets, and so I’m listening, once again for the 30th time, to John Coltrane’s closely related Interstellar Space album, with just himself and Rashied Ali on drums. I love Coltrane, of course, as who doesn’t? Black Pearls, A Love Supreme, Ascension, Giant Steps, My Favorite Things, Ballads, they’re all among my favorite jazz albums. But Interstellar Space I admit I have trouble figuring out. Mars and Venus should be polar opposites, but I have trouble finding much variety of mood or method on this CD. What am I missing? Postclassic is possibly not the right venue, but can anyone tell me how to listen to this last Coltrane disc (1967) and find it as wonderful as his earlier work?