I like the analogy. As I read it:
You build your Fi house near the Se sea, hoping for a nice ocean view. But then the Se sea comes in and knocks over the Fi house. That shows you: Fi is an artificial construction, and you build it according to your personal prejudices or according to what others have told you about how a house should be built. Meantime, Se reflects reality, and reality tends to come in and overwhelm you, especially if your Fi isn't equipped to take it into account.
So after your Fi house has been battered and knocked down by the Se sea (reality) a couple times, you finally wise up. You study the tides and movements of the Se sea (reality), and you build your Fi house to take into account those tides and movements.
I think the analogy works for Fi and Ne for INFPs as well. And I like the analogy because it does say something important about the nature of Fi: Often Fi is an artificial construction, a conglomeration of personal prejudices about how the world should be or a collection of simplistic beliefs and ideals fed to us by parents and friends. It's only with time and hard knocks that we begin to realize: Reality takes priority, and Fi has to be brought into correspondence with it.