Beyond the Blue Horizon waits a beautiful day.
Many seek their own version of Shangri-La beyond a Lost Horizon.
I expect Steven Pinker would have an interesting explanation for why horizons figure in our cultural memes. Why we invest the limits of our physical vision with our hopes for better days, our yearning for adventure, even our spiritual impulses.
For me, I just know that my eye can as easily be drawn to the far horizon as to the near vista.