In the United States, Valentine's Day has deep commercial roots, with hearts widely used to symbolize love and affection. Gifting chocolates and cards shaped like hearts is a common practice. [American] It has evolved into a consumer-driven holiday.

Hearts are featured on greeting cards and decorations as symbols of love. Prominent in romantic relationship celebrations worldwide. [Western] Hearts can also express various forms of love and attachment.

In Celtic culture, hearts signify unity and harmony. Symbols of love tied closely to festivities and gatherings. [Celtic] Much folklore is related to love and connection.

In many Asian cultures, the heart signifies not only romantic love but also familial bonds. Celebrated through various holidays signifying love and harmony. [Asian Cultures] Cultural nuances influence the interpretation of love.