Make me read on. Make me buzz with ideas and impressions before I even begin the poem. As in a novel, where a good first sentence entices the reader in, so a poem title should provoke a reaction that leads you into the poem. As much originality as the poem itself. There are problems associated with all titles.
Descriptive ones can be boring, safe.
Label ones, cryptic. Suspense titles, confusing. A descriptive or label title is deceptively simple. It seems at first to define content or set the scene so the poet can continue. True, it does that.