As Paul puts it in this video shot after the victory, "When you do your best good things can happen": http://tinyurl.com/6mkj6q9.
It's another chapter in a great story of overcoming adversity on an ongoing basis:
Overcoming Physical Adversity
One of the biggest challenges Paul has to overcome on a regular basis is his being a quadriplegic. Paul deals with that about as well as anyone could ever hope. Look at his record of achievement.
Overcoming Procedural Adversity
Then, there was the protest that didn't go his team's way in the 2008 Olympic trials. From what I know, accepting my bias, that was a bad decision. That hurt. Paul chose to deal with that not by escalating the debate, but by committing himself to winning this year.
Overcoming Competitive Adversity
Then, as Paul put it, he had to win a "match race inside a fleet race" in the last race to go to the Olympics. Actually, all Paul had to do was finish within two boats of his main challenger. There was so much that Paul and his team could not control that he operationalized that as simply finishing ahead of the other guys. Stll, as Paul told me "these trials were pure combat – and ever so gratifying."
For those of you less familiar with sailing lingo, a match race is a one-on-one competition. A fleet race is a one-on-many competition. There's something worth keeping in mind here about knowing when you have to beat the many and when you're really engaged in a match race inside a fleet race.