Lyric discussion by hudsterboy 

If this song was just about acid, it would suck. Its exact meaning is irrelevant. What it evokes is something that a lot of Floyd songs do, even after Syd. A sense of fear around darkness, emptiness, and the power of that fear. This song relates that horror to the profound darkness and cold of space and the universe. This is not a unique perspective. The universe holds all the secrets of dark and light. It's all there. What you bring relates to what you take away. I've looked and seen overwhelming emptiness, then again, I've felt the comfort of harmony, and infinite light of being connected and part of it all, from the tiniest atom on up.

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