Every song has a composer every book has an author every car has a maker every painting has a painter and every building has a builder. So it isn't irrational to take this simple logic a little further and say that nature must have had a Maker. It would be irrational to believe that it made itself.
What differentiates us from animals is the fact that we can listen to other people's dreams fears joys sorrows desires and defeats - and they in turn can listen to ours.