After reading a little bit about meaning, it seems that it's something that has to be found first

https://en.wikipedia.org/wiki/Meaning_(existential)

so even if there's meaning in the most miserable of lives, it's not guaranteed that it will be found. However, I haven't found anything suggesting that meaning makes life worth living, only a passing mention of it bringing happiness, which doesn't square with my understanding of torture or concentration camps. Am I misunderstanding what meaning is?