This is a sketch of the idea of happiness. The theme is the competition between two rival views of happiness: the hedonic vs. the eudaimonic. My main point is that the Heavenly Doctrines teach the eudaimonic view of happiness and that this view is superior to the hedonic for several reasons. I will examine the concept of happiness from philosophical, theological, and psychological perspectives. Aware that my professional expertise lies in only the first area, there may be errors in my conclusions in the other two fields. However, I think that the benefits of looking at the subject in a holistic manner outweigh the risks of a purely philosophical treatment.