Treasure in the first usage means precious gems like gold or silver . In its second use, it means to value something.
Hope this helps. We could help more if I had the poem for sure posted here but this is the meaning from the poem I think you are talking about.
Have a great day!
Apply, possess, circumstances, or, eligibility, entitlement, considered
Is there answer choices? If not, I'd put "repetitive". Hope this helps!