I don't agree that most of what you wrote there in any sense refutes the article or Seneca's letter on which is it is based, but this line definitely rings true to me. I think there are two reasons why it can help:
1. there was a line in a book from the 1940s that I browsed once in a cafe in London, written by someone who was (it seems) one of that era's most committed Egyptologists. Early in the book, he wrote (and I have to paraphrase it now, because I can't remember the elegant, if dated, prose he used): the point of travelling to places where things seem strange and different is so that when you return (or choose) somewhere, even if you had spent your whole life there before, it now also seems strange and different.
2. Getting a sense of the expanded boundaries of possibility can help make the walls of the Box of Daily Experience a bit more porous. When you have a clearer picture of the many different Boxes of Daily Experience that you and others live in around the world, it can (I think) become easier to find a new relationship with your own.