The people who are happy from the mind are real happy.
This photo was taken in the early afternoon on a hot summer day.The person, may be a boatman, is sleeping after a hard working day.He has not a laxury bed, the weather around him is very much dirty and from the reflection of the sky it seems as a sunny day but if you notice the photo carefully you can easily notice he is sleeping with so much comfort.
Mainly happiness depends on your demand.There are so many people living in our Society who are not happy after having millions of money, well fernished apartment. On the other hand, some people who lives in a very poor or middle class family are happy however they can or can't eat properly.
So whatever you have, where you live don't attention about your problems.