It doesn’t mean one should be passive or not care. Do your best and let it go.
“Remember that not getting what you want is sometimes a wonderful stroke of luck.” Dalai Lama
Sometimes, we want something very badly: a new job, a promotion, a raise, or an award of some kind. It’s usually because obtaining it would give us meaning, value or respect in the eyes of others.
It’s good to strive for better. It’s good to push yourself. But it’s in the effort that the reward sits, not in the fruit.
Eckhart Tolle says, “How do you let go of attachments of things? Don’t even try. Effort creates attachment. Attachment to things drops away by itself when you no longer seek to find yourself in them.”
Byron Katie reminds us that (for example) when it comes to working hard to get a new job (crafting your resume and cover letter, preparing for the interview), that is YOUR business. But when it comes to deciding whether you get that job, that is THEIR business and all the rest is up to “god” (her definition of god is reality).
So stay in your business. Live each moment fully. And let everything else go.