Final answer:
Auggie's astronaut helmet in the book Wonder symbolizes his dream of becoming an astronaut, his love for space exploration, and his resilience in facing challenges.
Step-by-step explanation:
In the book Wonder, Auggie's astronaut helmet symbolized his dream of becoming an astronaut. It represented his love for space exploration and his fascination with science and technology. Additionally, the helmet signified Auggie's resilience in facing challenges, as he overcame many obstacles to pursue his dream.