Music is a medium for expressing feelings, channeling experiences, ideas, and connecting with others who relate to what you're doing. If someone pulls value from what they're hearing, they may be inspired, or feel healed from some trauma, or it may just make them feel good. But if a message is delivered well enough, it may encourage positive change in either a single individual, or an entire community of relative listeners.
To produce music that is fun to play, and carries with it substance that may relate with others who share an experience, help someone in a therapeutic way, encourage more expansive thinking, and hopefully create a ripple of positive growth and/or change socially, morally, mentally, and (potentially) musically somewhere in the world.
Loosening the social tension between people due to differences or ego. It seems in society there's a social norm that you must walk straight with, and if you stumble, judgement springs like fleas. Why? I think it's become a habit for so many because despite us being so well off, our neurons are routed to complain, sit and talk, rather than express more positivity, move forward with the lessons from negative experiences, and concern ourselves less with other people's business as if our judgement means anything. It's their business. But we can love them.
In The End by Linkin Park. When I was around 3 I was listening to that and other Linkin Park songs in my dad's car.
Some of my favorites are any of Maynard James Keenan's projects, really. As well as Ne Obliviscaris, Stellar Circuits, Pink Floyd, Stick Figure, Billy Cobham. My music taste spans wide!
The involvement in a culture of creativity, friendship, collaboration, and support. As well as creating something that not only is nice to listen to, but something people can relate with, feel with, learn from, and be inspired by.