Question to Christians re humility

[Angrboda]

I don't know as I care to get into why Christians consider atheists arrogant (or aggressive, or whatever). It seems largely a defense mechanism of sorts.

I was thinking about humility in general earlier today though. Humility appears to be postulated as a virtue in multiple world religions, Christianity, Buddhism, Taoism, and so forth. I think part of my Taoism and its appeal to me is that I'm not very humble by nature, and it's giving me a playbook for rewiring my brain.

I think that humility also appeals to secular people as well. The fact that one doesn't want to be viewed as arrogant seems to imply that humility of one sort or another is considered desirable.

So, what is humility, and why is it desirable? (or is it desirable?)