The central idea of the poem 2morrow

The central idea of a poem is the poem's theme or 'what it's about' if you like. Although many shy away from poems being 'about' something, at the end of the day, the poet had something in mind when it was written, and that something is the central idea, whatever it is or might have been.

Explanation:

true. the definition explains it: a word or phrase that modifies or qualifies an adjective, verb, or other adverb or a word group, expressing a relation of place, time, circumstance, manner, cause, degree, etc. this is a dictionary definition that i have looked up in a dictionary.