The main idea could be centered around the glass case as a symbol of protection or isolation. Maybe the characters inside or around the glass case are either shielded from something or cut off from the rest of the world.
The main idea is often about kindness and gratitude. A poor boy is helped by a kind woman who offers him a glass of milk when he is starving. Later, the boy, who has become a successful doctor, repays the woman's kindness when she is his patient.
Maybe it's about the beauty of nature that a tree represents.
It could be a story where the glass case plays a crucial role. Maybe it contains something precious, like a valuable artifact or a mysterious object that drives the plot forward.
It's possible that the main idea is about transformation. A situation starts with a 'blow' which is a negative action, but then through the course of the story, it evolves into a 'kiss', representing a positive change. This could show how characters or situations can grow and develop in unexpected ways in the short story.
One possible theme could be 'protection'. The glass case is there to protect whatever is inside it, and this could extend to themes about protecting one's heart, ideas, or secrets in a more metaphorical sense.
The main idea is that kindness is rewarded. The woman's small act of giving a glass of milk to the poor boy was repaid many years later when the boy, now a doctor, waived the woman's medical bill.
I haven't read 'the glass case' specifically. But generally, when analyzing a short story, one can look at elements like the characters. Are they well - developed? What are their motives? Then there's the plot. Does it have a clear beginning, middle, and end? And the setting, which can greatly influence the mood of the story.
It's difficult to determine the main idea of the 'day 174 word story' without any information. It could be about love, adventure, mystery or anything really.
It might be about a teacher's unique teaching methods in a place called Scat.
The main idea of a short story is what ties everything together. It could be a problem that needs solving, a conflict that gets resolved, or a discovery that changes the characters' lives. It's what makes the story meaningful and worth reading.