The difference is that you should enjoy things not because nothing matters in this world (that would be hedonism.), but because the world matters to you, and you will fight to make it better.

There comes a point in everybody's life where they are faced with their own mortality and finally figure out what they are meant to do. None of us will be here forever, so, I think we should use our short time on this Earth to fight for a world where everyone is free to find their way in life, and be themselves again.

Kinda vague, but everyone is different, so, everyone will have to figure it out on their own.