This Is Only a Single Piece

This is only a single piece Handle it with much care An unknown source where I got it from How does it work? All people are as confused as I am. It is very unique And strange is the way of its behaving and dealing with Yet no other thing is as loveable as this As marvellously it builds a world With the elements of wonder and surprises It runs well, plays well Better than any film on earth But peculiarities with it is that If you miss a reel even by chance There is no option of, to rewind If you are of one year It brings you all the seasons But very unfortunately when winter comes you realize You had not spent the days of summer well and you repent As if repenting is your destiny. It is most valuable As it allows you to shape it up To reflect you as you wish or desire But unreasonably it has very limited number of usability power Even by mistake if you use it once It gives absolutely no chance to repent Let alone an opportunity to use it twice.