The random occurrence can be lucky or unlucky. To a writer this random occurrence could be just about anything from an unexpected request to see a manuscript to one of our characters in our story being unlucky. In quantum physics the movement of elemental particles is random and so is our luck or lack of luck.
Will an editor randomly pull out an old manuscript out of the bottom of the slush pile and decide it is destined to become a best seller? Or maybe it will become a best seller in another parallel universe.
If you pull the Wheel of Fortune card something unexpected will happen. Be prepared. Time to wear your Magician Tarot hat to employ magic in your favor.