Let me tell you a story. A story about yourself.
Perhaps it was in the years of your youth, or young adulthood, that you first discovered the art of working with gems. What a thrill it must be, you thought, to take something raw and imperfect and shape it into something pure and clear, to cut away what was unneeded and reveal what the rough stone was meant to be!
With hands still not used to the handling of the tools, the fine, precise motions, you set out to hone your craft. You found yourself shaping common quartz, tinkering with pyrite, that gold of fools... perhaps you intentionally started with such materials, perhaps you simply did not have the discerning eye you do now. It does not matter. You fumbled more than you shaped with any success. That, too, does not matter.
Years passed, and your early, clumsy works were long forgotten, almost embarrassing in retrospect, now that your eye and hand were well-honed tools themselves. You had learnt from masters of the craft and watched how the most precious gems were cut, with great care and precision.
One day, years later again, you came across a peculiar stone. It was set aside, a common rock, or so it would have seemed, yet your trained eyes saw just a pinhead of a clear glint. And you knew the shine of a diamond when you saw one. By this time, your handiwork lined the shelves of your workshop like mementos, and novelty has given way to routine, but the promise of working with something so precious kindled that excitement anew.
You got to work, and you found yourself enamored with it, and what it was becoming. It needed your careful hands; it would have been wasted on any lesser artisan. Perfect material deserves perfect craftsmanship. And how clear it was what a special, perfect work of art it would become the moment you separated the dull gray rock from the jewel inside!
...by the time you heard the crack, it was too late the ease the pressure.
By the time you wondered where you have made a mistake, the crack was a fault line spanning that crystalline interior.
And by the time you found the answer, it shattered completely, bursting into shards between the jaws of the vise.
And thus the story ends. Maybe I lied a little: maybe it's not quite about you, not all of it. But if some of it is, perhaps you found some value in all of it. Or so I would hope.