In the dialogue from "The Voyage of the Dawn Treader" by C.S. Lewis, Eustace shares a simple scientific definition of a star, describing it as a large sphere of burning gas. This perspective reflects a common understanding in the physical world, focusing on the composition of stars based on scientific knowledge.

However, the response from the other character highlights a deeper philosophical point. It suggests that the essence of a star transcends its material makeup. The implication is that while stars are made of gas and fire, their meaning and significance extend beyond mere science, reflecting a greater truth about existence and the universe.