College Essays and Supplements Question

<p>Hi! I'm new here so I'm sorry if this is in the wrong place.
I heard that when writing the common app essay and various supplement essays, it's good to have one be about a specific instance or thing, and one to speak in more general terms. I don't know if this is true, but has anyone else heard that, or does anyone else know if this is true?
Thank you. :)</p>