A great story here about gratitude my friend!
The world entices our thoughts to always have desires. All humans are born with a "want" and the designs are to lure people into getting what they want, but they never do.
Once one starts to control this want, then one can appreciate what they have. To know thyself is the answer. The Swan can never be a Peacock and the same with the others. Just so it is the same with us.
Control the want or live a life of bitterness!
Blessings!