This film was really short but was really interesting.
What I thought is, the big clod represents the every day conflicts/disasters, and the little clod represents us, humans.
We have conflicts like everyday, but some how we overcome them. Like now, actually we are trying to overcome from the big disaster happened in 3.11.
At the end of the film, it seemed like the little clod will be eaten up and escape from it like, endlessly. That means, we live with conflicts/disasters everyday, but overcome it and that's our life.