Disclaimer: The wonderful language of Quenya, the Doom of the Noldor and Galadriel are still the property of genial J.R.R.T.
Disclaimer 2: I am not Japanese and I am familiar with Japanese culture not nearly as well as I would like to be, so my haikus probably suck as haikus, but I tried to do my best.
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Autumn leaves dance, as
Ashes of years cover
Golden heart's fire.
Lassi narquelio liltar
Asto yénio topë
Laurë órëo
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Author's Notes:
1. narquelië is roughly equivalent to October, I didn't want to use "lasselanta" for "autumn" to avoid tautology. And the reason behind dropping the final ë (which you shouldn't do when forming a genitive) is purely phonetic – try to say "narqueliëo"
2. Galadriel… Don't you love how she went from proud but careless Artanis, to Nerwen who took up a sword to defend her relatives from her other relatives, to Galadriel who refused the One Ring…
3. Why golden heart? She was a "golden girl", had golden hair, and belonged to the Golden House of Finarfin. Finally, golden heart means kind heart…