In this dream, I was thinking about the border between Ireland and England. I believe I've always felt that it was kinda like the US-Mexico border (England being the "US" and Ireland being "Mexico" in this analogy), even though there's something called the Irish Sea between them.
To account for this, I envisioned that someone from Ireland could teleport to England, and that someone from England could teleport to Ireland.
The funny thing was this: Those coming from England to Ireland ended up in Belfast. Those going from Ireland to England ended up in jail.