Cervantes had lived an unusual and comic life till then.
Explanation:
Cervantes was a known author that time who had not published anything for more than 20 years and had spent a considerable amount of that time in Jail while being disgraced in the literati circle for being an imitator and also being amoral.
IT is something that he used for his book in which he satirizes such stances against him and is able to fight them back with such virility that suggests that he understood that such reflection on his life was bound to have a great effect.
