The Legend of Niúláng and Zhīnǚ: The heart of 七夕节 is the story of Zhīnǚ (织女, the Weaver Girl, a goddess) and Niúláng (牛郎, the Cowherd, a mortal). They fell in love and married, but their union was forbidden by the gods. The Queen Mother of the West separated them with a celestial river, the Milky Way. Moved by their devotion, magpies formed a bridge (鹊桥, quèqiáo) across the Milky Way, allowing the lovers to meet once a year on the seventh night of the seventh lunar month.
Comparison to Western Valentine's Day: While both are “lovers' festivals,” their origins differ significantly. Western Valentine's Day is loosely tied to Saint Valentine and is heavily commercialized. 七夕节 is rooted in a 2,000-year-old piece of folklore that embodies themes of enduring love, loyalty, and longing. The traditional tone is more melancholic and cherished due to the lovers' separation, whereas Western Valentine's Day focuses more on overt declarations and celebrations of current relationships.
Traditional vs. Modern Values: Historically, it was also called the “Daughters' Festival” (女儿节), a day for young women to pray to Zhīnǚ, a master weaver, for dexterity and a good husband. This reflects traditional values of domestic skill. Today, this aspect is largely gone, replaced by modern consumerist values of romantic expression through gift-giving and experiences.