Awe's a powerful and transformative emotion. It's inspired great works of aft incited religious movements and generated philosophical musing about the sublime. But despite this impressive resume, only very recently have we begun to study this emotion in psychology. So what is awe? I define it by its synonyms, wonder and amazement, and by its psychological experience. We feel awe when we encounter something vast and grande that challenges our world view. It makes us feel small in the presence of something bigger than ourselves and connected with others around us. Now you may be thinking that you have to travel to remote places in order to experience this emotion, but I can tell you that that's not the case. In fact, participants report feeling awe about twice a week on average, making it a more common emotion than you might expect. We feel awe when we hear beautiful music, when we look up at the night sky and see the stars, or when we watch athletes achieve feats that we thought were beyond reality. So here's the question: why would awe be a better predictor of good health than other positive emotions? We don't yet know. It may be because awe's particular protein at reducing stress or increasing feelings of social connection. It may be because awe generates a desire to engage or explore the world around us. Recent work suggests that awe promotes greater humility, prosociality and well-being. And all of these things could impact physical health.