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human
[Wh40k] Chaos rituals, what are they?

What are some examples of chaos rituals and what they are supposed to do. How do people get the literature/knowledge of chaos' existence in the first place let alone the rituals?
gpt
Most chaos cults get their ideas of what a cult is/supposedly is from bad holos, and as such does a whole lot of useless mumbo jumbo that achieves nothing (you're welcome). Hell, some actually create summoning circles, the sweet gullible heretics. 

Now real chaos cults, the ones that actually attract the attentions of a chaos entity, do so through human sacrifice mostly. Self mutilation, torture, as well as defacement of the Holy Sigils and images of the God-Emperor. Sometimes they begin as simple societies that enjoy the things the Ruinous Powers enjoy. For example, a Slaaneshi cult sometimes just begins as a bunch of bored nobles fucking a lot. One of them comes across a book that details some sexual rituals, next thing you know a Slaaneshi daemon has appeared in the middle of the blood orgy.

Or a group of Imperial Guard that finds combat more and more appealing, they start loving combat for combat's sake not the glory that is Purging the enemies of the Emperor.

Unfortunately for you, this knowledge is completely forbidden. In the Name of the Emperor, as his pious servant, I, Jalapenyobuisness, Lord Inquisitor of the Ordos Hereticus, hereby sentence you to death.

***BLAM***