Yes happiness is connected to human mind for example the people who are crazy they always laughing and singing without any reasons to do it they do it because they are happy. If happiness can be bought then there will be store for happiness so that people can buy it everytime they need it. More people are stress because of fair life and unfair opportunity. If happiness can be bought then we can buy it now. Then we couldn't see people inside the hospitals for those who are in the condition of abnormality. Maybe in some cases happiness can be bought but not all the time.