I believe that God set things up such that when we have a thought that BELIEVES the Truth of God, then we experience peace/joy. (…you will know the Truth and the Truth will set you free). When we have a thought that BELIEVES something that isn’t True, then we get depression/anxiety/anger, etc. We can influence our happiness (joy/peace) by controlling our thoughts/beliefs, not by controlling our circumstances. Few know this and fewer want to do it this way.