I want happiness : three times

A very rich and succeful person one day go to see a zen master - he told the master I have everything but how can I am not feeling happiness , " I want happiness " please tell me what should I do?

The master look at his puzzle face , with a light smile , the master said :

First thing you can do is token out " I " pay more attention on others not yourself 

Second you token want as well , eliminate your desires 

Now tell me what's left from " I want happiness "