Supervised by Ms.M
Affiliation: KARASU CHANNEL
Traditions studied: 12+ (Western astrology, Four Pillars of Destiny, Nine Star Ki, tarot, runes, palmistry & physiognomy, name numerology, numerology, feng shui, Vedic astrology / Zi Wei, Onmyodo, spiritual reading, and more)
Personal readings: by request via Contact,
currently booked years out
Read about Biorhythm
About this reading: Biorhythm theory holds that, starting from your birth date, three cycles — physical, emotional, and intellectual — rise and fall on fixed periods of 23, 28, and 33 days respectively. It traces back to a theory proposed by German and Austrian researchers in the early 20th century, but it has never been scientifically validated and is treated today as fortune-telling entertainment.
One reason biorhythm theory never gained scientific support is that its core premise — fixed-length waves running from your birth date — oversimplifies something as individually variable as mood and physical condition. Even so, its easy-to-read cyclical chart still draws steady interest as a rough guide for decisions like "take it easy today" or "push forward this week." As we see it here, biorhythm works less as a prediction of your condition and more as a simple habit-forming tool, a regular prompt to check in with how you're actually doing.
Lore column: The Worms That Leave the Body Every 60 Days: Why No One Slept on Koshin Night
A short read on the legends and strange tales around this reading, with this site's own view.
The idea that something inside the body moves on a fixed cycle is far older than biorhythms. In Koshin belief, said to derive from Taoism, the human body was thought to house three worms called sanshi, which kept watch over their host's deeds.
The night when the sexagenary calendar reaches kanoe-saru (koshin) comes once every 60 days. It was believed that if a person fell asleep that night, the sanshi would slip out of the body, rise to the Heavenly Emperor, and report the host's misdeeds, shortening their life. So people gathered on Koshin nights to talk, eat and drink, staying awake until morning. This was called Koshin-machi, the Koshin vigil.
Koshin-machi spread widely among ordinary people in the Edo period, and Koshin mounds and stone monuments were raised across the country. After the Meiji era it faded as superstition, yet the roadside stones remain today.
In this site's view, the Koshin vigil gave shape to the feeling that there is another self living inside us. This is speculation, but a night that returned every 60 days may have been a checkpoint that reminded people of their everyday guilt, and a chance to laugh it off by staying up with friends. Biorhythms, which read the body in cycles, may likewise be an attempt to listen, at fixed intervals, to inner changes we cannot see.
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