It means I want to live a full life and die while I am living a full life. Some people wake up in the morning, do the same thing every day, eat, shower, work, etc. But, they have a lot of things that they want to do and they don’t do. Its kind of like they are only alive in body and dead in spirit. Then comes a day that they physically die. So, the song is saying I am going to live a full life and am not going to die with an already dead spirit. I hooe this helps. :)