"Don’t forget to celebrate every success—a finished chapter, a finished book, a nice rejection letter."
Definitely celebrate your rejections, people! (Or does she mean celebrate the hardworking, under appreciated creep who rejected you?) While you're at it, check out the 30 sycophants who comment on her post, which is titled "Bittersweet Email." The comments alone will make you want to send a thank you note to yourself because you're not one of them.