Siddhartha by Hermann Hesse (http://www.amazon.com/Siddhartha-Hermann-Hesse/dp/1613823789). Not really a superpower but did help me understand lot more about life and how everything is connected. I have read it multiple times and the interpretation has been different each time - a new insight into the way we see life.
I have read the book during my difficult times and even during good times. I was able to relate to the various phases of Siddhartha's life. Also liked the certain amount of randomness in the sequence of certain events.
However, I must admit that not everyone may like the book. Some folks I know religiously follow the book as a life guide while some didn't find it all that meaningful. Its entirely on how you want to interpret the book.