Our sense of purpose is not dependent on the universe having a purpose. We are adept at meaning-making and we flourish through interdependent purpose. What we do matters to others.
Let’s get over our egocentric view that the universe is sending us messages. Belief in synchronicity is flawed by hindsight bias. Try writing down all your predictions in advance.
Beliefs probably evolved as energy saving shortcuts for processing information. The brain is invested in maintaining a stable internal equilibrium and a consistent sense of self.
Without the existence of extreme traits, we would have gone extinct as a species a long time ago. Many mental disorders are the inevitable result of genetic diversity.
The decline of religion will not result in nihilism, because religion is not the source of purpose, meaning and morality. Modern secular society is compassionate and flourishing.