What does happiness mean, how can we achieve it, what will it take to fulfill our quest in life, if we even know what that is? Happiness preoccupies far too many of us for too much of the time.  Madness too, although not so many of us contemplate it to an equal degree.  And yet the two are so often inextricably linked, unresolved conflicts tangling us up in knots.  A new book published by Penguin with the mental health charity, Mind, offers some invaluable insights.