How do we build happiness at work?

Over the last year, it's been my mission to better understand how workplaces, managers, and employees themselves are impacting a person's ability to be "happy." To me, happiness is a state without fear and anger, where calmness and fulfillment is present. I recently completed Martin Seligman's introductory Positive Psychology course. One of the most impactful realizations of this course for me was that Seligman classifies depression as a disorder of the future. Organizations that don't correctly understand the role of past, present and future in the lives of their employees can create damaging work environments that lead to poor productivity and even employee health problems.