Most of us are seeking ways to enhance our lives and get to "the next level". The issue though, is that we do not know how to package that request, to the powers that be, in a way that would inspire them to work with us and/or help us reach our goal.
This is where pitching comes in. Which is different than sales, might I add.
Pitching is enticing someone or something to do something for you. It involves telling them the problem, the proposed solution, how it involves them, what is needed of them, and what they can expect to happen after the collaboration.
Selling is all that plus "Click here to pay, please. kthanx".