For me music has been often a way for me to connect to my own emotions, When I was younger I would put alot of emotion into my own music,(guitar playing) it was a safe way for me to connect to those emotions. I still connect to songs that reasonate with me.
http://www.youtube.com/watch?v=oMNbHvDM1lY
Sheryl Crow,I know why.
I guess everyone has a source of inspiration they connect with. I always loved poetry and artists who could express that poetic sense through music or other avenues.