Unless you challenge your mind and body, how would you evolve?
Hardwork leads to failure which leads you to success. Hardwork is the test ground of your effort and failure is the test ground of your motivation. Unless you pass both the steps, you cannot reach success.
You cannot get what you desire. But you can get what you work hard for.
No matter how hard we try, sometimes we get lost in the course of life. What matters the most understanding and accepting that you're lost, and striving to find your way back.
It tells you how well one can imagine losing, not what the person can do.
Some losses are necessary to learn: learn to never lose again.