The 'boy in the wall true story' might be true in some sense. There are many stories in the world that are based on real events. It could be that a boy was in a situation where he was hidden or trapped near a wall, and this event was then told and retold, perhaps with some exaggerations over time. It could also be related to a historical event where a child was in a confined space near a wall for some reason, like during a war or a natural disaster.
Yes, it is. There are often real - life events or inspirations that get fictionalized in such stories. The details might be adjusted for the sake of the narrative, but it usually has roots in something that actually happened.
One possible theme could be isolation. If a boy is in the wall, he is likely cut off from the outside world, which can symbolize feelings of loneliness and separation.
One thing we can learn is the importance of hope. If the boy was in a difficult situation, his story might show how hope can keep a person alive and motivated. Also, we might learn about the human spirit's ability to adapt. Maybe the boy had to adapt to the conditions near the wall, and this can show us how we can adapt to unexpected and difficult circumstances in our own lives.
It's hard to say for sure. Sometimes stories like 'The Wall' draw inspiration from real events but might have fictional elements added for dramatic effect.