In many books novels or other forms of fictional writing, the reader is introduced to a so called 'chosen one'. This character or being is of higher power or in general, of different nature than other characters.
To be more precise - my question is about the making or formation of said 'chosen one'.
In my experience, being the 'chosen one' is often related to a certain event in which the 'chosen one' overcame a certain enemy or challenge in which most other characters would have perished/not succeeded.
In this specific event, I see a paradox: Did the character overcome the enemy/succeed in the challenge because he is the chosen one - or did he become the chosen one by overcoming the enemy/succeeding in his task.
How can I approach this paradox in a fictional story that has a 'chosen one' as the main character?