If you've never trod the valley,
You can never see the heights,
If you've never walked in darkness,
You'll never see the light,
If you do not climb the hill ahead,
You can't look round the bend,
If you're never really lonely,
You'll never need a friend,
If you've never failed, and failed again,
You'll never try your best,
If you've never suffered sleeplessness,
You'll never know true rest,
If you've never stumbled through the clouds,
You'll never see the blue,
If you've never suffered grief or pain,
Real joy won't come to you,
For the one calls forth the other,
As onward we must go,
Don't ask me how I found this out,
Let me just say "I know".