Meter refers to the unit in poetry for rhythm and the beats pattern. Also known as foot, it has usually two or three syllables in each foot.
A word meter is derived from the Greek word 'measure'
With the lines of verse or poem, the meter also refers to the unstressed and a stressed syllabic pattern. Unstressed syllables are shorter and the stressed tend to be longer.
It has various types such as iambic meter, trochaic meter, spondaic meter.
To help it stand out so you focus on it and remember it after you’ve finished reading the phrase
Hope this helped!!:D