The Seventh Clue

So why is it that I must go 

And leave my trove for all to seek?

The answers I already know, 

I've done it tired, and now I'm weak.

In the above stanza, we have two sentences, but I believe it is just one clue - the first sentence is a rhetorical question, thus requiring no answer because the next sentence answers the question....making it one clue in two sentences.

So why is it that I must go and leave my trove for all to seek?

The answers I already know, I've [I have] done it tired, and now I'm weak.