Wow! This film evokes a tremendous amount of emotion for any person who has had a deep non human relationship. I think Kytka explains it well.
I worked at a place called The Undersea Gardens in Newport, OR. I was a scuba diver and performed a show where we explained, showed and described many sea creatures of the Pacific Ocean. One was the giant pacific octopus. As I handled them, I could see thought process in their eyes, jut like humans. Brilliant creatures and the film paid homage. If I could live in the oceans I would be there in a second, no question.