I'm trapped in a square

When he woke up, Maureen was trapped in an airtight box. A cubic meter of mobile space, indestructible metal shell, no food, no water, like waiting to die in a coffin. At a time of crisis, Maureen found a strange change in her perception, extending outward through the wall. The outside world is in danger, but he can't move, so he can only hide in the box to influence this strange world. In the face of the ingenious misunderstanding of human beings in this world, he had to find his own way out in an alternative way.