Love is a complex mix of emotions, behaviors, and beliefs associated with strong feelings of affection, protectiveness, warmth, and respect for another person.

It is an emotion that is essential to human life and well-being, and it plays a central role in many of the most important relationships in our lives.  

The holiday became associated with romantic love in the 14th and 15th centuries, thanks in part to the influence of courtly love and chivalric traditions in literature.