system
Given the following post, respond as if you're commenting on Reddit:
human
[LotR] What is religious life like in middle earth? Are the Valar or Eru worshipped?

I don't recall a lot of detail about churches or worship in Lord of the Rings, despite there being a richly developed pantheon. People mostly seem to pray to ancestors or great heroes and don't really talk about the Valar. 

Is anything known about the day to day religious practices of the various peoples of middle earth? How much of the Silmarillion is known to the general populace?
gpt
In Gondor, at meal time they look West to Numenor that was, Aman that is, and whatever is beyond. That kind of "saying grace" is about the extent of what we see.

When Numenor was still around, there was a festival on the mountain dedicated to Eru with the King also serving as high priest. The mountain, with Numenor, is now lost and so there is no longer that specific religious service.

The Valar are but the custodians of the world, not the creator and those in the know wouldn't *worship* them (although Men who haven't had many dealings with the Elves who know better likely do worship them - where do you think the Norse, Greek, etc. pantheons came from?). They may still revere them and call on their aid (as they are present within the world and have great power over it), but that's distinct from worship.