Luki basically means fallen leaves.
Falling trees are very common in ancient poems. For example, there is a famous poem in Du Fu's "Ascend the High": The endless falling trees rustle down, and the endless Yangtze River rolls in.
The origin of falling wood
The annotation in Du Fu's "Ascend the High" states that "falling wood" means "fallen leaves", so why not say: "The boundless fallen leaves are rustling down"? Wouldn't it be clearer this way? Before Du Fu, Yu Xin once said in "Ode to the South of the Yangtze River": "The word "Dongting is full of fallen trees". Is there something subtle about the word "wood"? Wouldn't it be misunderstood as "wood falling from the sky"?
It turns out that "wood" is better than "leaf" because the word "wood" itself implies the chlorosis and dryness of fallen leaves, which brings the whole sparse and clear autumn atmosphere. It is different from the dense seeds full of moisture like "The Fallen Leaves He Pianpian". As Lin Geng mentioned in "Speaking of "Konoha"", Konoha belongs to the wind rather than to the rain, and to the bright clear sky rather than the heavy cloudy sky.
As for the fallen trees, they seemed even more spacious than the wooden leaves. Although "wood" and "leaf" have the same meaning, they have different artistic conceptions, which shows the wisdom and ingenious artistic style of ancient poets.
"The autumn wind is blowing, and the waves in the Dongting are under the wooden leaves." ("Nine Songs") Since Qu Yuan sang this moving poem, its vivid image has influenced many poets in the subsequent dynasties. The poems that have been recited by people are inspired by this. For example, Xiezhuang's "Yue Fu" said: "The waves are beginning in the Dongting, and the wooden leaves are slightly peeled off."
Lu Jue's "Song of the Linjiang King's Festival" also said: "Under the wooden leaves, the waves of the river are connected, and the autumn moon As for Wang Bao's famous sentence in "Crossing the River North": "The autumn wind blows the leaves like waves in Dongting." The influence is even more obvious. Here we see how prominently "Konoha" has become a beloved image in poets' works.