Poetry generally rhymes. Rhyme refers to the use of rhyme (initials) or (finals) at the end of a poem. Rhyming words are called (homophones) or (rhyming feet). The rhyme of the bet is the vowel of the word.
The rhymes of new poems are relatively loose. As long as they are roughly (the same) rhymed, they can rhyme every other sentence or (sentence by sentence). Some don't rhyme. Tagore's Paper Boat belongs to (rhymes with other sentences)