Travel is testing, so when you do it with your partner, family or group of friends – those relationships will be tested. It will be hard at times, but you’ll also have the chance to experience things together.
At home, you only really see a few facets of your partner or family. You may only spend a few hours or so with friends. But when you travel you spend a lot of time together doing many different things. All the planning, sight-seeing, eating and challenges will bring out different sides of people that you don’t often get to see. Hopefully, you’ll like what you see, but regardless, it should make you appreciate that your companions experience a full breadth of emotion just like you. That should help you empathise with one another and appreciate why they sometimes do or act in certain ways. You’ll also be able to bond over the good and the bad, and get a better understanding of each other as whole people.
If you’re travelling solo, that still applies. You’ll become more self-reliant, self-aware and discover things about yourself that weren’t obvious (or necessary) in the confines of home.