Missing Strophe in The Ghost's Leavetaking?

[H]

This has been bothering me for a long time now.
I have the audio of The Ghost's Leavetaking (which you can find in iTunes) and in it, Sylvia reads a strophe I haven't seen, it's not printed on my version of The Colossus, and I couldn't find it on the Internet either.
The missing part goes between "A world we lose merely by waking up." and "Trailing it's telltale tatters only at the outermost...".

Can someone explain this and help me out of my ignorance?
Thanks in advance.