Medieval literature saw the rise of courtly love as a central theme, emphasizing idealized romantic relationships between knights and ladies. This period also marked the growing prominence of vernacular languages in literary works, allowing for greater accessibility and expression of regional identities. Courtly love literature explored the psychological aspects of love, delving into characters' inner lives and struggles with desire and morality. The concept of fin'amor or "refined love" emphasized love's ennobling power, inspiring knights to achieve great deeds for their chosen lady.