You might want to begin with an observation that relates to
your experiences ("It takes years for a house to become a home.");
to the location(s)("Like most of North American, Philadelphia is cold and wet in the winter.");
of your personal history "(My passion for sports developed late. My first passion was art.");
or to human nature. Tolstoy begins his great novel Anna Karenina with this line:
“Happy families are all alike; every unhappy family is unhappy in its own way.”
You could come up with a similar insightful generality that has bearing on your own history.