During gaps in my sometimes intermittent work, someone used to ask me "Are you vacating yet?". We seem to rejuvenate by vacating from our habits.
As Colin Wilson points out, our proclivity towards a life of habit drains the vital life-force from us.
By "thinking is the best way to travel" I'm not referring to what some people think of as rational thought, but of inspired experience.
I doubt not that visiting distant places or cultures might allow some of us to vacate by exposing us to things beyond our daily lives. But for some people, those physically distant places are close by, and the real far away places are the objects of our psyches' longing.