Our lives are like a puzzle....and we are the pieces in it....we make up the picture.  Once you've played a piece, and placed it in to your puzzle, that's it...you can never use it again...they are like pieces of time...they go in to the puzzle...the longer you're alive the more you get to see of the puzzle...the more you know of your life, and perhaps of life itself, and, of course the less pieces you have to put in to the puzzle...once you play all your pieces you die.  There is no more to see....to question about.....we can see other's puzzle picture...we don't know what their final puzzle will look like until they're through with it....but we can see the picture they've created so far, up to that point in time...and there are similarities in everyones puzzle I think.  And the picture changes with time...depending upon which puzzle pieces are placed in the puzzle and in to what particular spot on the puzzle they have gone.  Struggles occur when we attempt to put pieces in to the puzzle that don't fit in a particular spot...or we try to look like other peoples puzzle picture...we all have our own unique pieces to fit in our own unique puzzle picture of life.  Until at last we place in the final piece of our puzzle, which then fits in to the larger puzzle of life, and we are finally at peace.  .....at which point we then go and have a pizza!