I believe that if, for whatever reason, I am somewhere, then that is where I am supposed to be for that moment in time. There is no "other" place I "should" be.
I choose not to spend a large majority of my day feeling as if I should be somewhere else. That only means that I'm never really anywhere.
Since there is no start and end point to the universe or to Earth, where you are is the center. Anywhere you move is the center.
Where you are is where you should be. If you are in the grocery store, that is where you should be. If you are at home, that is where you should be.