Ikabakari ureshikaramashi morotomo ni koiraruru mi mo kurushikariseba - Shin Kokin Wakashu(English Translation & Meaning)

いかばかり嬉しからましもろともに
恋ひらるる身も苦しかりせば

Roma-ji: Ikabakari ureshikaramashi morotomo ni koiraruru mi mo kurushikariseba
English Translation: How much more gladly
would my heart rejoice, if only
you, the one I love,
along with me, together,
were suffering this same pain
Meaning: How happy I would be if only you, the one I love, were suffering together with me.
Commentary: Book Thirteen Love Poems III 1221

Headnote: "Sent to someone."
This is the second poem of the sequence on resenting a cold-hearted lover and enduring the pain. How happy he would be if the one he loves were suffering together with him. According to the headnote, it was sent to someone.
The author, "Toba-in," is Emperor Toba. A son of Emperor Horikawa, he ruled for many years as retired emperor after abdicating and was the father of Emperors Sutoku, Konoe, and Go-Shirakawa.

The first line, "ikabakari," means "how much."
The second line, "ureshikaramashi," means "would I be glad." "Mashi" is the counterfactual auxiliary, answering "seba" in the last line, with a pause after the second line.
The third line, "morotomo ni," means "together," wishing that he and the beloved might share the same suffering.
The fourth line, "koiraruru mi mo," means "the one who is loved, too," pointing to the beloved. The self who loves and the beloved who is loved are contrasted.
The last line, "kurushikariseba," means "if it were painful." Through the counterfactual "seba ... mashi," it shows from the reverse side the reality that the beloved does not suffer at all. Where the preceding poem accused the lover of falsehood, this one sings of the pain of one-sided love in the form of wishing the same pain on the beloved.
Author: Retired Emperor Toba
Source: Shin Kokin Wakashu
Prev Poem: Itsuwari o tadasu no mori no yūdasuki kaketsutsu chikae ware o omowaba
Next Poem: Ware bakari tsuraki o shinobu hito ya aru to ima yo ni araba omoiawaseyo