This proverb has ancient roots, appearing in various forms across cultures. The Greek philosopher Plato expressed a similar idea around 400 B.C. It became a common saying in European languages during the Middle Ages and Renaissance, famously used by writers like Shakespeare, and has been a staple of Spanish wisdom for centuries.

In the Spanish-speaking world, 'El amor es ciego' is a universally understood piece of folk wisdom. It's used to comment on relationships, often with a mix of affection, gentle criticism, or resignation. It reflects a cultural understanding that deep emotional connection can sometimes override rational judgment.

As a proverb, its power comes from its concise and powerful metaphor. The personification of 'Amor' (Love) as a being who is 'ciego' (blind) creates an instant and memorable image. It perfectly encapsulates a complex human experience—the tendency to idealize a loved one—into four simple words.