Orpheus Descends - How to Play

About Orpheus Descends, from BoardGameGeek:

Orpheus Descends is a one-card game with only a few components. You are Orpheus and have to manage your resources Anger, Sorrow, Harmony and Trust. With enough Harmony you will be able to sing again. Descend to the Underworld (the back side of the card) and persuade the ferryman to bring you to the other side with your singing and later on even Hades the god of the dead to let Eurydice go. With enough Trust, you will make it back to the land of the living. Do you know how the story ends? Hades agrees on the condition that you have to go first and Eurydice follows behind. But if you turn around on your way up she will have to stay forever.