The miracle of flight
We often take flight for granted, but it's still a miracle that humans have mastered the art of flight through technological progress. Back before it had been done, people didn't believe it was possible, and even when it did happen, people barely believed the story because of how ludicrous it was. That's how remarkable human flight is—we've just gotten used to it, so we often forget that particular people in history had to invent the flying machine in order for us to have it today. This entire work can be understood as an attempt to remember the Wright Brother's contribution and the miracle of flight.
Brotherly cooperation
One of the prerequisites of being compatible workers as brothers is that you have to get through your childhood without ruining the relationship, and their dad was a pastor which can sometimes help, but often just makes it more difficult. The first miracle of the story is that two brothers liked each other enough to celebrate their differences and collaborate.
The miracle of genius
No doubt, without this aspect of the Wright brothers, such a discovery as the discover of flight would not have been possible. The boys were true geniuses. Wilbur's genius was the more obvious of the two, because it was his perceptiveness, his imagination, and his ability to solve problems that demonstrated his genius. For Orville, genius was different. It was his ability to see mechanisms and to intuitively understand machinery.
