Why Are You Laughing ?

This is just a random thought I had, about the differences of why and when we laugh at certain things. When is it okay to laugh at dark humor? When are you laughing in a healthy way, as opposed to puffing out your chest in an arrogant way, because you're scared of the world, so you feel the need to act tough and unbothered by things you ought to take a little more seriously?

I found clarity in a Youtube Vlogger's dream journal. I think her name was Heshkinah. But she retold this nightmare she had where she saw a bunch of people in hell. All those people were having a big endless orgy with each other, and they all felt disgusted and sick and horrified, but they were all outwardly putting on a mask of grinning and laughing loudly the entire time, trying to make it seem like they were enjoying it, loving it, wanting to do it, when really they were all in hell and wanting to stop humping in whatever ways they were doing that.