Broken

Bird with a broken wing
Struggling against the wind
Fighting to fly once more
Be strong and you shall
Heal the broken limb
And become strong once again
Go with the winds
Everything shall be right
As long as you continue to fight
What you once were will return
Maybe not the same at first
And you shall feel a bit weak
But that is simply fear
Taking a grip of you
Bird with a broken wing
Time heals all wounds
And you shall soar once more
Above the clouds of despair
Just remember to resist
The chains of doubt chained
To your feathers of a wrist

Metaphor for something. Figure it out.