Okay, this chapter has a lot of symbolism. But from here, I want to give my interpretation. From the beginning, we're shown that Mogawa sensei interpreted digging holes as a way to see our mistakes, from which we struggle to get out. As the chapters go by, the hole grows bigger and bigger until it's so big that there's no light or way out. It's not until they reach the bottom that they realize what they want to achieve. The mistakes they made, how they face them, and find a new purpose. Another thing I interpreted is how we isolate ourselves from the things we love because we think something has to be completely by the book. Something curious is that this same message can be interpreted in Shijima's encounter with "God." I also like how in another comment he talks about Nietzsche and his famous phrase: "Look into the abyss for too long, and it will look back at you." Even in previous episodes, Osamu Dazai's book, Zaratustra, was discussed. It's curious when those books talk about suicide and the abyss.
Ay pobre traductor de Google. Pero espero que se entienda jdsjsj 🍄