By acquiring knowledge of other places and people, travel can make us more peaceful in our interactions with others.
Running (or walking) with others is good for health and social connections. But you don't have to aim for marathons.
We need to educate ourselves daily if we aspire to live peacefully in a multicultural society.
Ask any anthropologist what they do and they will find it hard to give you a direct answer. But it ultimately comes down to studying people and their culture.