I would say that the Homer's pursuit of his dreams is probably the most significant element in his narrative. The fact that he never sacrifices his dream despite his father's inertia and the state of being in Coalwood are challenging enough elements. Yet, Homer does not acquiesce to these elements. The most significant thing Homer does is to pursue and continue the vision that exists in his mind, and in the subjective experiences of the Rocket Boys. The idea that the boys are able to pursue their dreams in a setting that is not immediately appreciative of their elements is vitally important. It becomes incredibly important for Homer to act and to continue to act on the advice of his mother in pursuing the designs and execution of his foray into the realm of rocket technology. This becomes his calling and his chosen profession so it would be logical enough to presume that his mere continuation of this through adverse conditions becomes the most significant element in his narrative.