You see Gorgeous girl in party, you go to her & say I am rich marry me
That's Direct Marketing.

You attend party & your friend goes to a girl & pointing at you tells her. He' is very rich, marry him.
That's Advertising.

Girl walks to you & says you are rich, can you marry me?
That's Brand Recognition

You say I m very rich marry me & she slaps you.
That's Customer Feedback

You say I m very rich marry me & she introduces you to her husband.
That's Demand & Supply Gap

Before you say I m rich, marry me, your wife arrives.
That's Restriction from Entering New Market