How understand this don't lose your courage no matter what if you give in then the game is over?

This phrase emphasizes the importance of perseverance and resilience in the face of challenges. It suggests that maintaining your courage is essential to overcoming obstacles; if you give in to fear or despair, you effectively surrender and end your pursuit. The "game" symbolizes life's struggles, where determination can lead to eventual success. Ultimately, it encourages individuals to stay strong and keep fighting, regardless of the difficulties they encounter.