I Gave it a quick listen. To be honest, I was most impressed by the final passage, where the flute and the piano modestly concluded the piece. The overwhelming grandeur of the opening seems a little too bombastic to my taste, even so that the orchestration gets lost in the overpowering sections. The theme is really nice and offers a lot of possibilities for varied arrangements.
Actually, bombastic or a wall of sound bordering on a wall of noise was exactly what I a trying to achieve on the second part.
The intro sort of ties into that as it's a take off of the intro to Paul Mccartney's Let It Be (also the title of the album, the last Beatles album to be released) also a sort of hymn, which was produced by Phil Spector who was famous for developing the Wall Of Sound in the sixties.
The last part was intended to bring relief or an escape from the intensity and confusion(blur)of what preceded it as the seventies did for those going through the turbulent sixties.
Well, something like that. It was really only rock n' roll.