Saw this programme on CNA today, Project happiness, where a group of CEOs go to Bhutan, in search of the truth about happiness. There they were inspired by the way of life in bhutan. When they left, they asked the bhutanese, "What do you think we lack?", the answer was "You've got everything, but you don't understand happiness".
Perhaps it's enjoying the process of life which makes you happy. Sometimes... You have to look around you and tell yourself that you have everything in life that you could possibly want.. such is the simplicity of happiness