The more he seeks to rise into the height and light, the more vigorously do his roots struggle ea...

We are familiar with trees. They are so tall and they have big trunk. 

It was said that the more the tree seeks to rise into the height and light, the more vigorously do his roots struggle earthward, downward, into the dark, the deep.

I was moved by this sentence. It was thought that man is similar with the tree. 

When people grow up and move towards their goals, they will inevitably encounter a lot of hardships and frustrations, failures and hardships. If we want to go further from success, we must seek challenges and surpass ourselves.

I think that's the essence of life.