Repetition

Definition: The act of repeating something to give it rhythm or a deeper meaning rather when it is said the first time.
Example:

Hush now little one,

The time has come,

Day has fallen into night,

Hush now little one,

Because sleep is now for you,

Please close your eyes,

And hush now little one

Significance: The significance of repetition is not widely know, but the usage of this skill in poetry can add to the rhythm of a poem and give a deeper meaning to the repeated word or phrase.