Many things: to bring me hope, happiness, soothe my nerves, increase my vibratory rate, heighten any experience, maximise my energy levels, emotional release, help me sleep. I could go on... But I wont.
For me it's many many things, but to sum it all up; my lifelong calling. Music is apart of almost anything that I do. And I'm majoring in Music Theory in college so I can become a better songwriter. But I hope that I and my band can make it in rock and roll, but the way it is today, we might not make it. So I can fall back on producing and/or teaching music.
I'm writing a long short story/ extremely short book. I made myself a c.d. of songs that fit the mood and story line I'm trying to project and I listen to it while I write.