Travel should be part of your life.
It is important. Mainly because people do not get a chance to be completely foreign.
There are undoubtedly things you will see and experience at the Grand Canyon that you would not by staying at your house or local neighborhood. But you really need both. Some people rarely travel and they miss out on the entire world and, also, they like get a really skewed and insular view. Some people are pining or traveling looking for something new, exciting, 'out there', when they could benefit from staying home and the forced introspection and meditation that provides.