Eleven years ago today, I suffered a horrendous, near-fatal automobile accident.  As those who are close to me know (and especially those involved in the event), I dreamed the events of the accident for three days prior to it happening, in rather specific detail.  In the end, the exact details of that dream occurred, and I was ejected through the sunroof of an SUV that was flipping over at 40+ mph.  This resulted in a broken pelvis/spine, several nasty lacerations, and Post Traumatic Stress Disorder, which I continue to deal with to this day.
For those who have had experience with the paranormal, this is not hard to accept.  For those who have not, it seems impossible.  I have been accused of 'believing my own press' on more occasions than I can count, and my answer is always the same: of course I believe it, because I have lived it.  I pity these people in a way, for they will live their lives in a close-minded state that will not allow them to explore any of the greater mysteries around us.  This also applies to those who like to attempt to apply 'scientific' analysis to something that is extremely difficult to quantify, as these events most often do not lend themselves to the standard scientific method, and are impossible to predict.  Those types like to spout their limited knowledge as proof of their assertions, but are, in the long run equally blind to aspects of reality beyond their understanding.
I did not start life as a believer, but had my mind opened to these greater mysteries for me by living through a number of unexplainable events.  It is hard to keep living in denial when you, and those around you, actually live through them personally.  For me, it opened my mind, and changed the way I perceive the Universe around me, for the better, as it allows me to keep an open mind, and examine things from more than one perspective before I make a judgement.  It has also made me a target of criticism by those same close-minded people on more than one occasion, but that is a small price to pay.  I spend this day not in regrets of the injuries I received, but in renewing my appreciation of all my life has to offer.
I am thankful for that day, not because it proved to me that we can indeed be given knowledge of the future, but because it taught me to value my time here on this world on a daily basis.  There are greater mysteries in the Universe, things we cannot readily explain at this point in our development, but we have to be open to those possibilities if we are to have any hope of unraveling them, or taking the next step in our logical, and spiritual, development.
 