When I wrote the image of a crooked tree, there were a whole bunch of thoughts. I have them all I will not retell. It's too long.
Here is one of the most obvious.
Each of us sometimes feels "crooked tree." For that would not give up and to continue takes courage. The tree in this respect wiser. It simply grows. Growth for him is not a feat, but a natural condition. It is not fighting with myself, not torturing myself with regrets and doubts about their abilities.
Perhaps we also need sometimes to imagine myself as a tree, leave a self-destructive feelings and just move in accordance with the system of values, life goals and priorities.