We're almost at number one in my personal top ten freethinker songs, and in at number three is;
Cat Stevens-Moonshadow
The tale goes that a kid from an urban environment with lots of artificial light is standing on the coast in a more natural place and sees his shadow by the light of the moon.
And nothing is ever the same again.
No mention of a deity or a need for one, just a kid discovering there is more to life than what he had always known.