I've always loved choral singing. Being able to sing in harmony with others, expressing together what none of us could alone, expressing through the sounds of our voices emotions and images that words alone fail to convey. Having the opportunity to sing my heart out- not just to sing with all I've got, but to express the deep things in a way that only God could possibly understand in full- even I don't always understand why a certain piece just pulled at my heart so much.
Not just choral music, though. There are so many songs in my library that pop up on shuffle that I just belt out in the car (or kitchen, or while running) because they speak to something in my life.
And I've often found it easier to express to others how I'm doing or what I'm thinking by making them a CD. For a while I was making a playlist of the month- 15 or so songs that really grabbed at me that month. Then if someone close to me asked how I was doing and I wasn't sure how to answer- or if I really needed someone to know where I was at and couldn't find the words- I could burn that playlist for them. Sometimes they'd understand on their own, but if not, it was easier to open up when I had the music as a starting point for the conversation.