Have you ever heard of John Calhoun's Universe 25 experiment? This article gives a good overview of this mouse utopia experiment and some rat ones he did before. I guess you could say he played god for those mice, to bring them everything they needed to live, but it seems life doesn't thrive for long without some form of adversity.

I keep coming back around to balance when it comes to these things. We need something to believe in, whether it be a god or a purpose, but we don't necesarily need our lives to be perfect.