Beautiful quote; 

"Accumulation of small happiness only make you happy".

So when you seek happiness in one day, you would not be able to get anything. But if you appreciate for a little thing everyday, that will make you happy. Appreciate what you have right now. You can find your happiness. 

「幸せは日々の積み重ねからできている。」
ーーー言葉からみるEthnicity