Seirei no Hi (Day of Poetic Spirits)

What Is Seirei no Hi?

Every year on March 18th, Japan observes "Seirei no Hi" (literally, "Day of Spirits/Souls"). This day is connected to the tradition that three of Japan's most legendary poets—Kakinomoto no Hitomaro, Izumi Shikibu, and Ono no Komachi—are all said to have passed away on this same date, March 18th, though in different eras. Since ancient times, the Japanese have believed in "kotodama," the mystical power thought to dwell within words. On this day, people honor the spirits of these great poets while sensing the spirits ("seirei") said to inhabit all things, and cherish the beauty of poetry and language.

Historical Facts About the Three Great Poets and Their Legends

These three poets occupy an extraordinarily important place in the history of Japanese literature.

• Kakinomoto no Hitomaro: One of the most celebrated poets of the "Manyoshu" (Japan's oldest anthology of poetry), revered as a "poetic sage" (kasei). From grand epic verses to delicate elegies, he dramatically elevated the expressive power of the Japanese language.
• Ono no Komachi and Izumi Shikibu: Both leading female poets of the Heian period. Komachi was one of the "Six Poetic Geniuses" (Rokkasen), and Izumi Shikibu was counted among the "Thirty-Six Medieval Poetic Geniuses." Both wrote with striking sharpness about human love and the impermanence of life.

The Reality of "Kotodama" and Animism

Japan has a deeply rooted animist tradition—the belief that a spirit or soul resides in all things.

• The Concept of Kotodama: Since ancient times, the Japanese have believed that "the words you speak shape the reality around you." Even today, this idea finds an echo in the well-documented psychological and physiological benefits of positive self-talk and affirmations.
• Spirits and Nature: The cultural practice of recognizing sacred presences in mountains, rivers, rocks, and trees forms the basis of a sustainable worldview that overlaps with today's concepts of biodiversity conservation and living in harmony with nature.

Fascinating Facts About "Seirei" (Spirits)

• The Reading "Shoryo": When the characters for "seirei" are read as "shoryo," they often refer specifically to the spirits of the deceased in Buddhist terminology—but in the context of this commemorative day, the meaning broadens to include "the mysterious source of life" itself.
• Izumi Shikibu Memorial Service: At temples such as Seiganji in Kyoto, a memorial service called "Izumi Shikibu-ki" is still held on this date, drawing many literature enthusiasts each year.
• The Mystery of Ono no Komachi: Remarkably, the dates of Ono no Komachi's birth and death remain unknown, and numerous "Komachi legends" and supposed gravesites exist across Japan. The tradition of her death anniversary falling on March 18th is part of the broader deification and legend-building around her.
• The Deification of Kakinomoto no Hitomaro: From the Edo period onward, Hitomaro came to be worshipped as a god of fire prevention and safe childbirth, enshrined at "Hitomaru Shrines" across Japan.
• "Seirei" as a Seasonal Word: In haiku poetry, "seirei" and "seireidana" (spirit altars) are traditionally seasonal words associated with autumn and the Obon festival—yet this March 18th observance coincides with spring, a season when all things' spirits are said to awaken.

Ideas for Enjoying Seirei no Hi

• Read a single poem by Kakinomoto no Hitomaro or Ono no Komachi aloud, savoring with all your senses the "sound" and "imagery" that ancient Japanese poets wove into language
• Spend the day consciously using positive words like "thank you" and "beautiful," letting good kotodama circulate around you
• In honor of March 18th, write a handwritten letter to someone or keep a journal—giving shape, in words, to your inner voice
• Take a walk in a park or forest, listening to the wind and the rustling of trees, reconnecting with the unseen energy (spirits) of nature

Beautiful Words Bring Richness and Harmony Into Your Life

March 18th is a day when the words you speak shine like magic, wrapping yourself and those around you in a warm light. Just as the words woven by great poets a thousand years ago still reach us today, your own sincere words can become a priceless gift, leaving a lasting mark on someone's heart. That sensitivity to the life dwelling within all things will transform your everyday life into a rich and mysterious story. May today be a day when you encounter expressions that move your heart deeply, and may it mark the beginning of a year filled with rich sensitivity!