At first, today's short film really reminds me of the Oscar-winning La Maison en Petits Cubes (The House of Small Cubes). Similar 2D, hand-drawn style and nearly the same visual metaphor (at least on the surface). They even have a bit of a similar message, though this one ends up being significantly darker than Cubes, and almost more of a warning than a meditation. The importance of our memories as fundamental and irreplaceable building blocks of our humanity comes through loud-and-clear, though. Some memories are not worth giving up, no matter the alternative.
How do we perceive our past? Do we need it to acknowledge our own existence? Do we needlessly carry it as a burden on our shoulders? Should we guard it even at the cost of our own future? What would we give up to survive? Why is it so hard to let go?