This is my first book review for Amazon and I am jumping in here only because I so loved this book I wanted to see it get another 5 star rating.Others have delved further into the plot and I suggest that readers forgo the "book review" below as it contains an ending spoiler which I would have hated to have uncovered ahead of time. This story is so beautifully constructed that I am going back now and rereading upon finishing in order to appreciate the interconnected pieces and subtly placed hints that carry one to the amazing ending. This is an intellectual journey of an extremely ordinary person coming to find his extraordinary self. The layers of insight revealed relentlessly as we travel with Hal mirror everything from the horrific state of the world we live in and our means of shutting out the terrible pain of what it means to live, love and lose, to the embracing of one's own mortality and the inevitable dispassionate judgement of no god greater than one's own soul. Yes the book demands that you slow down and read each sentence more carefully than you might normally do, but what rewards await your diligence! This was a feast and I enjoyed every minute...I laughed out loud on the airplane when I started it, because Hal's insight is wicked funny, and later got up in the middle of the night to finish it...I just had to know where it was going, and I was sorry to have to put it down in the end. For me it was a relief to come across a read like this, original, revealing, stimulating, challenging, funny...if you like to push up against the boundaries of your comfort zone, and end up feeling like you just went somewhere profound in your armchair then this might be a good one for you.