No 9.

All movement is accomplished in six stages
And the seventh brings return.
Song: Chapter 24
Album: Piper At The Gates Of Dawn

This particular lyric has always confused me. It sounds particularly deep and meaningful, maybe even philosophical but despite being a mathematician (a discipline historically very closely related to philosophy) I can't work it out.

Maybe it's a reference to biblical creation or Shakespeare's seven stages of a man's life. Or maybe it's just something random spewed from a drug-addled mind. Any ideas? What does it mean to you?