Read this sentence some where:
"THE RICHEST PERSON IS NOT ONE WHO HAVE THE MOST THINGS BUT ONE WHO NEEDS THE LEAST THINGS"
Mmm...... how true this is. Whenever i see a toddler playing or how a parent pacify a 7 to 8 months old baby with foods, (just a few pieces of honey star could make them shake their legs and hands, and grin from ear to ear), I always wonder how could they be so easily satisfied. Well, i guess it just reflect the above:
When you required less things, you would feel happier
When you have less desired, you would feel happier too.
As one grows older, you want more and you feel less happiness when your desired is not attained. No wonder, babies are always the happiest.