Where am I?

So sorry about the confusion
Said the man with the road signs
I only meant to lead you safe
To the next man down the line
But if you fail to see my friend
The same track that you started
Perhaps your feet have wandered off
To a path yet more uncharted
It seems to me you have a plight
That festers in your bones--
The butterfly blues, compels your flight
And cuts short all your plans