Kore wa mina omoishi koto zo nareshi yori aware nagori o ikani sen to wa - Senzai Wakashu(English Translation & Meaning)

これはみな思ひしことぞ馴れしより
あはれ名残をいかにせんとは

Roma-ji: Kore wa mina omoishi koto zo nareshi yori aware nagori o ikani sen to wa
English Translation: All of this, I knew,
was what I had foreseen: from when
we first grew close—
"Ah, the lingering after,
what shall I do with it?"
Meaning: All this I had foreseen: from the moment we grew close, I thought, "Ah, what shall I do with all that will linger after?"
Commentary: Book Fourteen Love Poems IV 902

Headnote: "Topic unknown"
All this I had foreseen, he says; from the time we grew close, I wondered, ah, what I would do with the lingering after. From the very beginning of their intimacy he had sensed that parting would come one day and that he would suffer from its aftermath, and now it has come to pass exactly so: the poem conveys the grief of a premonition fulfilled. It is a poem that sees the sorrow of parting as the fulfillment of a fear held since the first of their meetings.
The author, "Middle Captain of the Right Palace Guards Tadayoshi," was Fujiwara no Tadayoshi. The son of Regent Fujiwara no Motozane, he served as Middle Captain of the Right Palace Guards and later joined the ranks of the senior nobles.
Poem 841 in this book, with "kore mo mina," attributes a love that goes against one's wishes to karma from a former life, while this poem, with "kore wa mina," attributes it to a long-held premonition. The two begin with very similar phrasing in their first two lines and correspond with each other.

First line, "kore wa mina": "all of this," pointing to the present pain of parting. It corresponds with the similar phrase "kore mo mina" in the first line of 841 in this book.
Second line, "omoishi koto zo": "shi" is the attributive of the past "ki," "it is what I had long thought." "Zo" is an emphatic particle. The poem pauses here.
Third line, "nareshi yori": "naru" means to grow close, and "yori" a particle marking a starting point, "from the time we grew close."
Fourth line, "aware nagori o": "aware" is an interjection of grief, and "nagori" the feeling that remains after parting, the lingering.
Fifth line, "ikani sen to wa": "sen" is "su," "to do," in the irrealis with the auxiliary of will or conjecture "n," "what shall I do." "To wa" gives the content of "omoishi koto" in the second line, closing in inverted order.
Author: Fujiwara no Tadayoshi
Source: Senzai Wakashu
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