system
Given the following post, respond as if you're commenting on Reddit:
human
[40k] If the emperor told everyone not to worship him when he was alive then how did the whole cult of the emperor get started?
gpt
The early Horus Heresy books touch on this.

Basically, the universe is a pretty sucky place to start, and in the aftermath of the HH it got even suckier. Humans sort of needed a something to put their faith in, and it was hard to put that faith in progress and reason when things were just straight up getting worse all the time. So instead, they put their faith in the massive, gold plated, immortal, incredibly powerful godlike being who created the Imperium in which they lived, ruled it, and then died defending it.

In conclusion, DIE HERETIC!