I thought of this in the bus..
Image this cycle :The first starts with one person being unhappy-> then he heard a good news of his friend, pregnant, married, met someone special, won a lottery etc-> he is very happy for his friend====> end product : He is =) happy + PLUS his friends felt that he shared his joy, He too become happier than he was when he was at the beginning of the cycle
does it make sense?
Conclusion : to me, i am happied when i am sharing other people's joy... like what adrian said, when he helped out in his friends wedding, he told the bridegroom that he enjoys his wedding much more than his own.
I am very happy for Violet , wai kea and Ai wei... =) i am excited for them, much more than my own wedding.. ha ha