The Seven Mysteries of Life I read last November over the span of a month, and this book is probably the one that has most-defined who I am today, even though it's been just a year. The author, Guy Murchie, spent 15 years writing it. From it I learned the most anybody is from me is 50th-cousin. I also learned that there are insects so small they don't feel gravity, and for them flying through the air feels like swimming. Seriously, get this book, it is earth-shattering.

I'm also going to recommend another book but I hope not to undermine my first recommendation. It was written by Joseph Campbell and it's called The Hero with a Thousand Faces. I read it in January. In it Campbell writes of many mythological stories and then ties their common themes back to the journey the 'hero' must take. And from this journey the hero must take I got insights that were profound. I'm not kidding when I say I hold a deep reverence for this book.

I hope you check 'em out. :)

Edit: Here are the links to the books on Amazon:

The Seven Mysteries of Life: http://www.amazon.com/The-Seven-Mysteries-Life-Murchie/dp/03...

and The Hero with a Thousand Faces: http://www.amazon.com/Thousand-Faces-Collected-Joseph-Campbe...