What is the main theme of 'the door in the wall short story'?

Well, I think it might be about the power of imagination. The door in the wall could be a symbol of a world created by the character's imagination, a place where he can escape from the mundane reality. It shows how our minds can create a haven for us when the real world becomes too much. For example, the character might be facing a lot of stress or boredom in his normal life, and this door offers a way out, a chance to explore a different side of existence. This theme is quite common in many short stories as it delves into the human psyche and our need for something more than what we see in front of us.

Typically, the main character is the one who discovers the door in the wall. But without more specific knowledge of the particular version of the story, it's hard to name others precisely.

There is likely a main character who is the one to first encounter the door in the wall. This character is probably going through some sort of internal struggle, perhaps feeling unfulfilled in his normal life. And then there could be other characters who either don't believe in the existence of this door or are envious of the main character's discovery. For instance, there might be a friend or a family member who dismisses the idea of the door as a childish fantasy, which adds to the conflict in the story.

It could have various meanings. Maybe it represents an opportunity or a hidden path to something new.

I think one of the main themes is identity. Through the events related to the wall, the characters' identities are either challenged or affirmed. It could also show how community identity is formed or changed in relation to the wall.

The main theme could be exploration. Since it's about 'beyond the wall', it might involve characters exploring the unknown areas outside the wall, facing new challenges and discovering new things.

The main theme could be about the power of art and how it can transform a space and people's perception of it.

The main theme could be about the power of art. In the story, the wall might symbolize a canvas for self - expression, and the 'war' could represent different ideas or groups competing to leave their mark on it.

The main theme could be secrecy. The hidden door is a physical manifestation of something being concealed.

The theme could be discovery. If the door is mysterious, then the characters' journey to understand what's behind it or what the door represents is about discovery. It could also be about the unknown. A door often separates the known from the unknown, and the story could be exploring how the characters deal with that. For example, they might be afraid of what's on the other side, or eager to explore it. In short, the door acts as a catalyst for exploring these themes in the story.