【Koyomi】 September 23, 2024
72 Kou｜Kaminari Sunawachi Koe wo Osamu 七十二侯｜ 雷乃収声（かみなりすなわちこえをおさむ）
The Meaning Behind "雷乃収声" (Kaminari Sunawachi Koe wo Osamu)
"雷乃収声" marks a specific time in the traditional Japanese calendar called the seventy-two microseasons, or "shichijūni kō." This particular microseason occurs between September 22nd and 27th, during the autumnal equinox, known as "shūbun." It symbolizes the moment when the thunder, which roared throughout the spring and summer, begins to fade and quiet down. The intense summer storms give way to a more peaceful and tranquil atmosphere.
「雷乃収声」の意味
「雷乃収声」とは、日本の伝統的な暦である七十二候の一つです。この候は、9月22日から27日の秋分の時期に訪れます。春から夏にかけて鳴り響いていた雷が静まり、次第にその声を収めることを意味しています。夏の激しい雷雨が落ち着き、秋の静けさと穏やかな空気に変わっていく頃です。
The Contrast of Thunder in Spring and Autumn
Interestingly, "雷乃収声" has a counterpart in spring known as "雷乃発声" (Kaminari Sunawachi Koe wo Hassu), which appears during the last days of the vernal equinox. In spring, thunder signifies the beginning of warmer weather and the approach of summer, with large thunderclouds forming in the sky. But as autumn arrives, these clouds change into more delicate types, such as cirrocumulus clouds, known as "uroko-gumo" or "scaly clouds." This transition symbolizes the end of summer storms and the arrival of a cooler, more stable season.
春と秋の雷の対比
「雷乃収声」には春に対応する「雷乃発声」という候があり、春分の末候に現れます。春の雷は、暖かい季節の始まりや夏の到来を告げるもので、大きな雷雲が空に現れます。しかし、秋が訪れると、その雲はうろこ雲や巻積雲など、より繊細な種類に変わっていきます。この変化は、夏の嵐の終わりと、涼しく安定した季節の到来を象徴しています。
The Beauty of Autumn Skies
As summer transitions into autumn, the skies are often adorned with "uroko-gumo" (scaly clouds), which belong to a type of cirrocumulus cloud. These clouds form at high altitudes, often above 5,000 meters, and are known for their small, thin, and translucent appearance. This kind of cloud is a visual representation of the clear and refreshing weather that accompanies the end of summer heat, offering a perfect backdrop for the cooler and quieter days of autumn.
秋の空の美しさ
夏から秋へと移り変わる頃、空には「うろこ雲」がよく見られます。うろこ雲は巻積雲の一種で、上空約5,000メートル以上の高い場所に発生します。その小さく薄く、透き通った雲は、残暑が落ち着き、清々しい天候を視覚的に表現しています。夏の暑さが和らぎ、静けさが漂う秋の日々にふさわしい空模様です。