(Ir)religiosity

These words from Simon & Garfunkel are haunting to me.  I’m not sure what to do with them…I just let them sit…and simmer.

And the people bowed and prayed
To the neon god they made.
And the sign flashed out its warning,
In the words that it was forming.
And the sign said, “The words of the prophets
Are written on the subway walls
And tenement halls.”
And whisper’d in the sounds of silence.