The movie Spirited Away?

I LOVE this movie. It's a good movie that kind of leaves you wondering
in the end. I'm just asking for personal opinions. Why does it talk
about love when, well, the most Haku was in the 2 hour movie was
probably, what 10-20 minutes. They didn't talk much, you don't really
know Haku. Again, asking personal opinions. I just want to know what
you think the point was of the movie.