system
Given the following post, respond as if you're commenting on Reddit:
human
[40k] Orders of magnitude more direct worshipers give faith to the Emperor than any Chaos, Eldar, or other God. The big mystery is: where does all that psychic energy go to?
gpt
The Astronomicon. The great light that guides all ships through the warp.

Before the Emperors fall, he kept this light going all by himself. Now, the ambient belief from all the loyal humans around the galaxy keep it going, with the help of a few thousand sacrificed psykers.