The Last Exhalation of the Poison Month
The heat of the lunar fifth month in Beijing is a thing that settles into your bones and refuses to leave. It hangs in the air like a damp quilt, thick with the scent of ài cǎo (艾草, mugwort) smoldering on doorsteps and the faint bitterness of xióng huáng jiǔ (雄黃酒, realgar wine) lingering from the Dragon Boat Festival’s final days. On this day — the 27th of the fifth month, a Saturday marked by the Bǐng-Xū day stem and the Tiān Dé Xīng (Celestial Virtue Star) — the temple fairs of the capital shift into a different gear. This is not the frantic commerce of the New Year markets, nor the lantern-lit romance of the first month. This is a community’s last, collective exhalation before the calendar turns toward the stillness of autumn.
The Chinese almanac for today calls it a "Neutral Day" — neither fully auspicious nor inauspicious — but the lǎo Běijīngrén (老北京人, old Beijingers) know better. They feel it in their joints: the wǔ dú (五毒, five poisonous creatures) — snake, scorpion, centipede, gecko, and toad — are still active, still lurking in the tall grasses of the temple courtyards. The Chinese Almanac Today warns that the Fetal God resides in the kitchen and stove this day, and the Péng Zǔ taboos forbid repairing the stove. But the temple fair has its own logic, older than any almanac.
I arrive at the Dōng Yuè Miào (东岳庙, Temple of the Eastern Peak) just as the morning drum begins its low, wooden thud. The air is already thick with steam from a vendor’s cart — zhà jiàng miàn (炸酱面, fried sauce noodles) bubbling in a copper pot. A woman in a blue táng zhuāng (唐装, traditional jacket) hands me a cup of suān méi tāng (酸梅汤, sour plum juice), its deep, smoky sweetness cutting through the heat. "Drink," she says. "The fifth month dries your insides out."
Why Does the Fifth Month Still Demand Vigilance?
The question hangs in the air as naturally as the incense smoke. Why, three weeks after the Dragon Boat Festival, do communities still gather to perform exorcisms and purification rites? The answer lies in the Chinese understanding of the lunar calendar’s seasonal logic. The fifth month is called dú yuè (毒月, Poison Month), a time when the yáng (阳) energy reaches its peak and begins its slow decline. The Yì Jīng (易经, Book of Changes) teaches that the moment of supreme yáng is also the moment when yīn (阴) begins to creep back in — and this tension manifests as disease, discord, and spiritual vulnerability.
At the temple, an elderly dào shì (道士, Taoist priest) named Master Chén explains it to me while arranging sticks of incense in a brass holder. "The fifth month is a month of thresholds," he says, his voice raspy from years of chanting. "You do not cross a threshold in a single step. You pause. You look. You listen."
"In the fifth month, the five poisons emerge;
The hundred ghosts roam the streets at dusk.
Hang the mugwort, burn the realgar,
And let the drum drive the demons away."
— Folk rhyme from Shandong Province, author unknown
The temple fair becomes a lín shí jiè xiàn (临时界限, temporary boundary) between the pure and the polluted. The drummers — bare-chested men in red sashes — beat a rhythm that matches my pulse. Each thud is supposed to zhèn shè (震慑, awe and intimidate) the lingering malevolent spirits of the Poison Month. Children run past carrying paper lanterns shaped like jīng yú (鲸鱼, whales), their painted mouths agape to swallow bad luck.
The Taste of the Temple Grounds: Bitter Tea and Sweet Rice
Every temple fair has its geography of tastes, and the fifth-month fair is defined by extremes. At the northern edge of the courtyard, a grandmother stirs a cauldron of kǔ guā tāng (苦瓜汤, bitter melon soup). The smell is herbaceous, almost medicinal — a flavor that makes Western tourists wince but that locals sip with the reverence of a sacrament. "It cleans the blood," she tells me, ladling the pale green liquid into ceramic bowls. "The fifth month heats you from inside. This qīng rè jiě dú (清热解毒, clears heat and resolves toxins)."
Across the yard, the sweet counterpoint arrives in the form of zòng zi (粽子, glutinous rice dumplings) — not the savory versions stuffed with pork and salted egg that dominate the Dragon Boat Festival, but a simpler, sweeter variant filled with hóng zǎo (红枣, red dates) and bīng táng (冰糖, rock sugar). The vendor, a man named Lǎo Wáng, has been making these for forty years. He wraps each dumpling in ruò zhú yè (箬竹叶, bamboo leaves) as if performing a ritual — the leaf folded exactly three times, the string tied with a precise double knot.
"The secret is in the soaking," he says, his hands moving faster than my eyes can follow. "The rice must rest in cool water for six hours. Not seven, not five. Six." He points to a stone basin filled with cloudy water. "The temperature matters. Too warm, and the rice ferments. Too cold, and it refuses to soften." The resulting zòng zi is dense, almost chewy, with the sweetness of the dates bleeding into every grain. It is a taste of childhood — not my childhood, but I feel its weight in my memory nonetheless.
For those interested in how these seasonal foods align with the broader rhythm of the year, the 24 Solar Terms page offers a deeper look at the agricultural and culinary logic behind each lunar phase.
Heart Mansion and the Night Opera
As dusk falls, the temple fair transforms. The lunar mansion for today is Xīn (心, Heart), the fifth of the twenty-eight lunar mansions and one associated with fire, passion, and the pulse of life. In traditional Chinese astrology, the Heart mansion governs the heart of the Azure Dragon of the East — a constellation that rises in the spring sky and now hangs directly overhead, its red star Xīn Xiù Yī (心宿一, Antares) blazing like an ember.
Under this sign, the temple stage comes alive with jīng jù (京剧, Peking opera). Tonight's performance is "Nào Tiān Gōng" (闹天宫, Havoc in Heaven), the story of the Monkey King Sun Wukong stealing the peaches of immortality. The wǔ shēng (武生, male martial role) leaps across the stage in a costume of gold and crimson, his movements so sharp they slice the humid air. The jīng hú (京胡, two-stringed fiddle) wails in a minor key, and the gong crashes with a sound like a bronze door slamming shut.
Children sit cross-legged on the ground, their faces upturned, mouths open. An old woman next to me narrates the plot to her granddaughter in a whisper: "Watch, child. The Monkey King does not obey the Jade Emperor. But he learns. He always learns." The girl nods, clutching a paper lantern shaped like a peach.
The opera runs until the stars themselves become visible through the haze. At the final note, the audience erupts in applause, and firecrackers — biān pào (鞭炮) — begin to pop in the streets outside the temple walls. The sound is sharp, percussive, a cleansing blast of noise that chases away whatever shadows remain from the Poison Month.
The Weight of Clay: Making Offerings to the Earth
Not all temple fair activities are loud. At the eastern altar of the Dōng Yuè Miào, a quieter ritual unfolds. A group of women — some in their seventies, some as young as twenty — kneel before a small earthen altar, molding ní rén (泥人, clay figurines) into the shapes of animals: a rooster, a pig, a dragon. These are not toys. They are tǔ shēng (土生, earth-born) offerings meant to appease the tǔ dì shén (土地神, Earth God) who controls the fertility of the soil beneath our feet.
I watch as a woman named Zhāng Jiě presses her thumb into a lump of damp clay, forming the eye socket of a miniature horse. "The Earth God is tired after the sowing season," she says without looking up. "We give him something to remind him of the harvest to come." The clay comes from the banks of the nearby Yongding River, its grey-brown color flecked with mica that catches the lantern light. "You cannot use just any clay," she adds. "It must come from huó shuǐ (活水, living water) — a river that flows, not a pond that sits still."
When the figurines are complete, they are placed in a small kiln built from brick and huáng tǔ (黄土, loess soil). The fire is lit at the exact hour when the Heart mansion reaches its zenith — a moment the women calculate using an old wooden rì guǐ (日晷, sundial) in the temple courtyard. The clay bakes for exactly the time it takes to recite the Dào Dé Jīng (道德经, Tao Te Ching) Chapter 16 — a text about returning to the root, about stillness at the center of motion.
"Attain the utmost emptiness;
Preserve the utmost stillness.
The ten thousand things arise together;
I watch their return."
— Laozi, Tao Te Ching, Chapter 16 (translated by author)
The women chant in low voices, their breath forming small clouds in the cooling evening air. Then they stand, dust the clay from their knees, and walk back into the festival's chaos — the drumming, the laughter, the sizzle of jiān bǐng (煎饼, savory crepes) on a griddle. The Earth God has been fed. The Poison Month is almost over. Tomorrow, the almanac will show a new day, a new set of stars, a new chance to begin again.
As I leave the temple, the tiān dé xīng (Celestial Virtue Star) of the day's horoscope lingers above the eastern wall — a faint, steady light that seems to promise protection for those who have done the work of remembering. The taste of kǔ guā is still sharp on my tongue. The drumbeat is still in my bones. And somewhere in the darkness beyond the city's neon, the Heart mansion wheels slowly toward dawn.
This article is based on traditional Chinese calendrical systems and historical texts, provided for cultural learning and reference purposes only.