Happiness & unhappiness is a state of mind & therefore we need to stop finding happiness & unhappiness outside. If our mind is unpeaceful & agitated even we are in good circumstances we find it impossible to be happy. It is not what is happening that is makes us happy & unhappy, it is how we responding to those things. It is the state of mind that determines our happiness & unhappiness. The gift of happiness truly lies within our hearts and minds.