* As a source of protection: For the main character, Barney, shelter provides a place to escape from the harsh realities of his life. The dump, where he meets Stig, becomes a sanctuary where he can be himself and forget about his troubles.
* As a symbol of hope: The shelter that Barney and Stig build together represents their friendship and their hope for a better future. It is a place where they can dream of escaping from the dump and living a better life.
* As a source of conflict: The shelter also becomes a source of conflict between Barney and his family. His parents do not approve of his friendship with Stig, and they see the shelter as a symbol of his disobedience. This conflict leads to tension and ultimately results in Barney's decision to leave home and live with Stig in the dump.
Overall, shelter plays a complex and important role in the book "Stig of the Dump." It is a source of protection, hope, and conflict, and it ultimately shapes the course of the story.