Happiness

What is happiness? Is it money, power or status? Or is it just a cup of tea in on a sunny day afternoon, or lying in your warm bed when it is cold and pouring rain outside? Happiness can be complex, but it also could be very easy to find/define/access.
It is obviously that happiness means different things to different people. So what on earth* is happiness [on earth]? In my opinion, happiness is the most fantastic thing you can feel in your heart when something fulfils your wishes/needs/desires/[demands] and makes you feel satisfied .
For example, some people always complain about their life. They think there is still [a long distancet between them and their ambitions/causes]/a long way to go to achieve their dreams/fulfil their aspirations/ambitions. They do not feel happy, because they consume that let/allow their cause to [consume]/take over their (whole) life/[the cause is]/their ambitions are their whole life. They used to overlook the important things they have, such as love from/the love of their families and friends.
But whatever you achieve/succeedss or not, do not forget you could be more happyier if you grasp the things you already haved. You need to find them, and treasure/cherish them, and (do) not let them it go. Otherwise you maybe regret forever.

* If you use the expression  'what on earth . . ?'  before the question, you are emphasising [placing importance on] the question ;  however, if you use it after, as you have done, it does not do this, but is understood literally - 'what is happiness [in our life] on earth ?'

A good argument, well presented.