The quote from Larry McMurtry's "Lonesome Dove," highlights the tendency of some individuals to overestimate their importance in the world. It suggests that they may believe their presence is crucial for the functioning of life, akin to the sun rising. This reflects a common human inclination to feel indispensable, often leading to an inflated sense of self-worth.

In a broader context, the statement could serve as a critique of self-centered attitudes, emphasizing how such mindsets can distort one's perception of reality. It encourages readers to recognize the vastness of the world, which operates independently of any single person's existence.