Going about your life the same way day after day, doing the same activities you've always done, and planning the next weekend to mirror the last one is a good recipe for shrinking your awareness, joy and understanding of the world.
We have a natural (and often useful) tendency to stick with the familiar in life and avoid situations that make us uncomfortable. This is a good way to stay out of sticky situations, but it's also a good way to get in a rut and stay there. Pushing yourself to embrace new activities and experiences that force you to step outside your comfort zone is a good way to change the way you think.
Perhaps it's something physically intimidating, like skydiving or bungee jumping. Maybe getting outside your comfort zone means you seek out public spaces in which you're an ethnic, cultural or religious minority. Instead of vacationing in well-worn tourist traps, try a new destination that's off the beaten path.
Now that we've gotten you on the path to seeing things a whole new way, tee the nest page for lots more articles on changing the way you think.