What is a Direct Loan Master Promissory Note?

<p>im going to rutgers next year.
they awarded me with a " Direct Loan Master Promissory Note"?</p>

<p>what is this?
should i fill this out? </p>

<p>it directs me to the studentloans.gov website.
btw, i only have to pay like $4000 a year</p>