Who can tell me the meaning of an English poem? Urgent need!

Poetry: a work of rhythmic lines written in mathematical form

or

Poetry (Poetry): 1. A metric composition; Poetic works written in a certain rhythm, whether blank poems or rhymes, are characterized by imaginative and poetic wording; -as opposed to prose; Like Homer or Milton's poems.

2. A composition, not poetry, the language is

Very imaginative or passionate; As a prose poem; this

Ossian's poems.