I own that album
I'm not sure why, but the opening lines by Stephen Hawking always give me chills. Not at the voice, but something about the image that the words create... I make a lot of images in my mind when I listen to music.
One line that always stood out from this album, and that I found quite fitting for some time, was in the song after this one. It went something like, "... stuck in a world of isolation, while the ivy grows over the door."
Some hardcore Floyd fans dismiss the later albums due to the band no longer being whole by then, but I still think it's a great album in its own right.