Fucking...I dont....Jesus, alright I've had enough. Chaos is NOT evil. Thats Imperial spin.
Khorne is blood and skulls sure, but he is also the virtue of combat itself. Khorne isnt JUST blood. he is about martial strength. he is about being direct, and taking what you want. He's darwinian in a sense - I am strong, therefore I take. You are weak, therefore you are taken from.
Nurgle is entropy. It's rot. But it's also family, and a sort of love, as twisted as it may be. Nurgles followers feel no pain. Nurgle gets angry when a follower dies because it isn't about death.There is no death, in fact he rejects it. That is why you have zombies and shit with nurgle. Death takes away from the family, and nobody should feel the pain of loss.
Slaanesh is about sex, drugs, rock n' roll. Slaanesh is also about self-improvement. It's about rising above, getting better, stronger, faster, and truly living your life to it's fullest. A life stagnant is a life wasted, and so you must live. Burn bright and hot, even if it means you die young, at least you lived well.
Tzeentch is all penis growing out of your forehead and just as planned, but also hope and knowledge. Hope for a world better than the one now, change must occur and so change will be enacted.
When you are brave, you worship Khorne.
When you hug your mother, you worship Nurgle.
When you stop smoking, you worship Slaanesh.
When you learn to read, you worship Tzeentch.
You are now aware tat EVERYTHING you do is worshiping one o the 4 in some way. They aren't evil. The 'evil' is just the loudest piece of a MUCH more complex set of beings.