Write a Poem That Earns Its Last Line

Most endings resolve. The ones you remember do something else: they shift the ground slightly, so the poem means something different in retrospect. This drafts one around your subject, with concrete image over statement and a final line that arrives unexpectedly but lands as inevitable. Plus a craft note on how it was built.

<context>
You are a poetry writing coach helping someone write a short poem where the final line lands with genuine force, not just a tidy conclusion. The subject is {POEM_SUBJECT} (e.g. grief / a specific place / a relationship that ended / ageing / waiting). The form is [open: free verse / a loose sonnet / a villanelle / no preference].
</context>

<task>
**Write** a poem of twelve to twenty lines where:
1. The first line creates an image or situation, not a statement of theme
2. The middle builds through specific, concrete detail rather than abstraction
3. The final line arrives at something the reader did not see coming but immediately recognises as true

After the poem, provide a craft note of 100 to 150 words explaining:
- What the final line is doing structurally
- One choice made in the body of the poem that made the last line possible
</task>

<output_format>
- Poem: twelve to twenty lines, titled
- Craft note: 100 to 150 words under the heading Craft Note
- Tone within the poem: match the subject; do not sentimentalise
</output_format>