The way a poem is divided is part of its structure.
The structure is the way the lines are grouped according to a meaningful order. The poem is divided into the group of lines which are called stanzas. Each stanza ends with a pause which focuses on a thought or a particular feeling. It depends upon the poet, era and the revolutions which affect the pattern and form of the poem.
Diction is the choice of words taken by the poet while writing a poem.
Meter is the rhythm and structure in which a line of a poem is written.
A tone is used in a poem to mark an effect or to express certain feelings to the readers.
