Yep. People who haven't a clue and that's everyone, make up little clubs based upon a stab in the dark, which over time can become big clubs in big buildings.
They make up rituals in the form of noises, actions, narratives, fancy gowns for the top bods, and all manner of other stuff.
Sometimes they partake of inter club fighting, which is very clever.
Human sacrifices used to be the thing, but are sort of widely frowned upon nowadays, though here and there some poor goat or sheep still gets it's throat slashed.
But hey ho, all a part of human social development, and ongoing material development; still with no clue, but now we have created AI and whether or not AI will ever have a clue remains to be seen, and whether or not AI will form rival clubs or one big one, also remains to be seen.
Perhaps AI will popularise human sacrifice once again.
Anyway, I'm all for taking my cloths of and dancing around a bonfire with a load of nubile women. Anyone else fancy coming along? We can sing songs and perhaps wear masks and drink or inhale some special stuff, which might help us connect with another realm.