I also paint, draw and I'm into film and photography as well, and the same thing applies to all of them. You're presenting this material to the general public and hoping that they're going to 'get' what you're doing. Some don't, some do.
Musicians from the beginning of time have been there to express the mood and the musical feelings in the air for whatever's going on in that particular culture. It's the greatest joy as a musician to be able to translate that, be part of something and watch the scenery around you.
We were the rebels of the music industry so we wanted to write a rebellious song.