If everything is happy go-lucky all the time, you don't know when you're experiencing joy and feeling life at its finest moments. You have to suffer a little.
You ever tasted a smell? It's a very strange feeling. I've done it quite a few times and it still freaks me out.
I don't feel guilty about the music I love. If you feel guilty about something you dig, then you should stop feeling guilty about it. One of my favorite albums to this day is the 10th anniversary ensemble cast of 'Les Miserables,' the ultimate cast recording, and it is still something I love listening to top to bottom.