How Did This Happen?

In two weeks from today this little boy will be 5 and graduating from preschool.  And those two events are causing my heart to break.  How did the time go by so quickly?  Five years of our time with David is already gone. 
This little boy is growing so quickly and our hearts are much more full then they were 5 years ago, and they are swollen with pride, and they are aching for the time to just slow down.  Because this little boy is really not so little anymore.  And this little  boy, the first born to us, blesses us daily with joy and laughter and just makes us want more time with him.