The main idea might be about a star blanket. It could be that the story revolves around the significance, origin, or the adventures associated with the star blanket. Without reading the actual story, it's hard to be more specific.
The main idea of 'the star blanket short story' could be multifaceted. It may explore the cultural importance of the star blanket in a particular community. It could depict the relationship between the characters and the star blanket, like how a character feels a sense of comfort or identity when wrapped in it. The story might also use the star blanket as a device to explore themes such as tradition, belonging, and the passage of time.