For many people, that includes a concept of God, or something like it.

CNN: Balancing faith and business

Semah rituals are founded upon the concept of unity with God as part of a natural cycle: people come from God and return to God.

UNESCO: Intangible Cultural Heritage

In it, her father concluded that the concept of happiness can't apply to God and that, as long as pain and death are in the world, it can't apply to humans either.

WSJ: Book Review: Is God Happy?