From the Anna K Tarot, the King of Cups; from the Meditation Cards, Die Before You Die:
It is the denial of death that is partially responsible for people living empty, purposeless lives; for when you live as if you'll live forever, it becomes too easy to postpone the things you know that you must do.
Acknowledging death, not just in an intellectual way but with the heart, can help us see just how precious and fragile life is. Another way the King can take care of himself is to see what is living in his mind 'rent-free' - resentment, envy, fear, etc. - that takes away from his own joy and his capacity to be of service to others. There's no need for anyone to waste time on those story lines.