When you draw a heart, you think of love — but the Valentine's heart looks nothing like a human heart. In this episode, Renee and Dan follow a surprising trail from ancient medicine and plant seed pods to medieval devotion and the rise of print, asking how a simple, abstract shape became the world's shorthand for affection.

This is a brisk, curious story of symbols and survival: fertility, faith, poetry, and commerce collide as the heart shifts from anatomical organ to sacred sign to mass‑market motif. By the end you’ll see why a shape that never looked like a heart came to mean it — and why that matters.