Valentine's Day is all about the hearts: heart-shaped chocolates, cards, balloons and even pizza. But the heart hasn't always ...

When to skip: If you’re looking to express romantic love. The heart-on-fire emoji is a symbol of passion or lust. Emojipedia states that this heart also indicates “a sense of burning a past ...

But the heart hasn't always just been a symbol of romance. Across cultures and centuries, the heart has been revered as the seat of the soul, a source of supernatural power and a vessel of identity.