I think it is we choose to believe in something outside of the norm...we let ourselves hope....we let our guards down and are willing to do silly things such as make a snowman or create snow angels...we don't even mind if someone hits us in the face with a snow ball!
I am challenged by this renewed belief and hope today to let my guard down and believe. Believe in others, hope for the future and the willingness to let my guard down and just enjoy life.