Rejection comes in many flavours, usually bitter and hard to swallow. My favourite flavour is the bittersweet kind that you get when you've done something worthwhile, only to have it shut down, like a research piece, a story, a date, or life in general. Sometimes rejection can be physical, when you're literally pushed out or blocked out of space you wish to occupy. Sometimes it's mental. Sometimes societal.
Robots told me I was rejected, it's happened before, and it will happen again. The flavor wasn't bittersweet, though, it was more like... dried fruit. Apathetic. Not any shame in being rejected where 99% of people are. Long odds even for the best of us.
It's easy to deal with the rejection by either fighting or giving up, the former of which will lead to more rejection, the latter of which will never allow you to perhaps one day overcome it. But then again, the last thing we want is an unhealthy dose of optimism, which is about 1 PPM.