Meter

Meter

Definition: A regular pattern of stressed and unstressed syllable.

Example: 

~      ~   /   ~    ~      /   ~    ~    /
From  the  centre  all  round  to  the  sea,
~   ~    /   ~    ~    /     ~    ~      /
I  am  lord  of  the  fowl  and  the  brute.

Significance:  

Meter brings some sort of emotions to the readers or listeners. 

As the reader is reading the poem, meter can help them to feel the beat of poems.