classic waka stream

逢ふことをいつとも知らで君が言はむ
ときはの山のまつぞ苦しき
Roma-ji

Au koto o itsu to mo shirade kimi ga iwamu Tokiwa no yama no matsu zo kurushiki

English Translation
Not knowing when we
are ever to meet, I wait
for the time you'll name,
like the pine on Tokiwa's slope,
and how painful is the wait!
Meaning
Not knowing when we may meet, waiting for the "time" you will name, like a pine on Mount Tokiwa, is painful indeed.
Commentary
Book Eleven Love Poems I 681

Headnote continued from the preceding poem: "Topic unknown"
The poem says that, not knowing when they may meet, waiting like a pine on Mount Tokiwa for the "time" the beloved will name is painful indeed. Pivoting "tokiwa" on "toki wa," the time she will name, and Mount Tokiwa in Yamashiro, and "matsu" on "pine" and "to wait," it expresses the pain of being kept waiting without end, like the pines of Tokiwa that never change their green. Following the preceding poem, 680, it sings of a waiting love, and like "matsu nite toshi no henuru kana" in 626, it pivots on "pine" and "wait."

First line, "au koto o," means "our meeting," the same line as the first line of the preceding poem, 680.
Second line, "itsu to mo shirade," means "not knowing when," with "de" a negative conjunctive particle.
Third line, "kimi ga iwamu," means "that you will say," with "mu" in its attributive form modifying "toki wa" in the fourth line.
Fourth line, "Tokiwa no yama no," is a pivot word: "tokiwa" means "toki wa," the time she will name, and Mount Tokiwa in Yamashiro Province.
Final line, "matsu zo kurushiki," is a pivot word: "matsu" means the "pine" of Mount Tokiwa and "to wait." The binding particle "zo" is resolved by the attributive adjective "kurushiki." It uses the same pivot as the second line of 626, "matsu nite toshi no."
Author
Unknown Poet
Source
Shui Wakashu
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