I've officially gone insane

What if life just went away? Just... Gone? But thats can't happen, can it? Because matter cannot be created or destroyed, right? So what if we took all the matter and made it into something else? What if we completely encased the earth in a cement like thing? Just a giant ball of cement, floating in outer space... We wouldn't be able to see it, but don't you think it'd be so lovely? Completely untouched by everything, any form of life, just floating randomly in space. I think it would be incredible. I would love to be a single person, wandering that blank cement planet. I would be completely, utterly alone. Just me and nothing. And then when i get hungry and i can't go on, i could just jump and i would float away. Wouldn't that be lovely? Just floating in space, forever preserved, above the loneliest planet? One wouldn't know it, as they'd be dead and once one is dead it's hard to know anything because they are dead, but it would be a beautifully sad sight. Perhaps it would be on the wedding day of a bride, when everything else melted into an unliving planet, and she wanders the earth, or what was the earth, singing a lovely song about everything bad, scary and wrong, and then she jumped. Can you imagine the beauty of that? A single beautiful person, dressed in beautiful clothing, whispering her lullaby so sad and sweet, the words frozen on her lips for all eternity. Oh, the beauty! And what if there is something somewhere else that finds the cement planet and the frozen lullaby bride. What thoughts would cross their mind? Would they be sacred? Would they take the bride in and chop her up until they see fit, or would they leave her floating above her lonely planet? And what of the planet? Would they shave and cut and hammer at the cement until they crack it's perfectly smooth surface? Would they dig under until they find whatever's left of the once-alive earth? And what would they call such a place? Where would they be from and where would they go? My beautiful bride, all cut into pieces would know, but she would not... Could not ever say. This lonely planet, so cold and alone, is something that should never be found. Locked away in the darkest corner of the ever-expanding universe. Kept hidden from everything that could harm it and it's frozen lullaby bride of a moon. Kept secret. Left alone. Too beautiful and sad for anyone to see, for nobody's ready to see. If it were there, they'd close their eyes. Wouldn't you do the same, if you weren't part of the planet? Something so terrifying and mysterious would surely cause doubt, confusion, panic. A message, perhaps, from the unexisting gods? A warning about the next three end of the world predictions? Nobody knows. Nobody will know. This earth continues to live, and our bride now sings merrier songs as she awaits her groom.
Why can't something as perfect as this be real?