>>11076420Organisms evolve better, worse or neutral qualities. Those that randomly got better qualities may outcompete those with worse qualities, since they are better suited for the environment. Thus, the better adapted survives and the loser goes extinct. This may create an illusion that it's directed or something, but it's not. Also, what's better or worse is subjective and rarely obvious. Larger claws might make a predator more deadly, but they could also hinder movement.
This is an overly simplistic explanation, obviously, but it gets the point across.
You can observe and direct evolution in a lab. How is that a religion?