Final answer:
The details of knights and a fairy forest suggest that Mathilde dreams of stories from the genres of fantasy or fairy tales. Mathilde's disappointment with her life may stem from the fact that her reality falls short of the fantastical and adventurous world she dreams of.
Step-by-step explanation:
The details of knights and a fairy forest suggest that Mathilde dreams of stories from the genres of fantasy or fairy tales. These genres often include elements such as knights on noble quests and enchanted forests filled with magical creatures. Mathilde's disappointment with her life may stem from the fact that her reality falls short of the fantastical and adventurous world she dreams of.