Happiness is often called psychological wealth.  But what does it take to achieve this?  There is a definite connection between material wealth, spiritual wealth, and psychological wealth, and it’s well worth exploring, as Ed Diener, and his son Robert Diswas-Diener (called the “Indiana Jones of psychology” because of his research adventures around the world) do in their book: Happiness: Unlocking the Mysteries of Psychological Wealth.  The book is filled with practical advice, and backed up by solid research.  It explains how we are not necessarily “born” happy, but that we can and do change our levels of happiness.  It also says that happiness alone is not enough, we need to be happy for the right reasons, which extends beyond material riches, emotional intelligence and social capital.  And the authors also provide a model for a happy approach to life, based on Attention, Interpretation, and Memory (AIM).  Happiness is indeed the journey more than the destination, and how we react to the world.