Hes talking about how people take what they hear in the songs they listen to and allow it to shape the way they live there lives and it becomes a place to go in which to find answers to the emotions of your heart.
"The heart is deceitful above all things, and desperately wicked: who can know it?" Jeremiah 17:9
"Come unto me, all ye that labour and are heavy laden, and I will give you rest." Mathew 11:28