Helen is now a citizen of two countries Helen has two flags, two presidents, two constitutions and two loyalties.
Well, people with dual citizenship certainly are a thing, but, no, being a Catholic doesn’t mean you’re a citizen of the Vatican. (if there were the case, it’d be one of most populated countries in the world!)
The Vatican is a government with its own money
“The Holy See” is the government, and they use the Euro now. (tho I don’t know when this tract was made, so it could have been long before that happened, lol)