Worship is giving God the best that He has given you. Be careful what you do with the best you have, Whenever you get a blessing from God, give it back to Him as a love gift. Take time to meditate before God and offer the blessing back to Him in a deliberate act of worship.
So, yeah, my people figured that maybe there's something at the back of it all, a creator, a great spirit, and so we say thank you to it, because it's always good to say thank you. But we never built churches. We didn't need to. The land was the church. The land was the religion. The land was older and wiser than the people who walked on it.