What makes you feel alive?

What makes you feel the most alive? What makes you feel alive? I seem to have a lack of adrenaline in my life
I have a very strange urge to learn an instrument and join a band or something, just for the rush. My friends think that's silly and that I should find a hobby that's related to something I'm already good at, or that is related to/will help me in my career, and then find another say to get an adrenaline rush. What’s your favorite thing to do that makes you feel alive and aware?