They bring joy at first .....

but eventually ..they burst !

 Those are balloons that look good now and we know will eventually burst.
What we don't know is everything in life is a potential balloon.
We are overcome with anguish when our balloons burst one after the other.
The correct attitude would be to enjoy them when they are full, and then
move on, keeping the dictum in mind that nothing in life is permanent.

Bobo's thought: Change is inevitable . Except for God, everything changes.