Murete iru tazu no keshiki ni shiruki kana chitose sumu beki yado no ikemizu - Senzai Wakashu(English Translation & Meaning)

群れてゐる鶴の気色にしるきかな
千歳すむべき宿の池水

Roma-ji: Murete iru tazu no keshiki ni shiruki kana chitose sumu beki yado no ikemizu
English Translation: How plain it is to see
in the bearing of the cranes
gathered in a flock:
the pond water of a house
to stay clear a thousand years
Meaning: How clearly it shows in the bearing of the cranes gathered in a flock: this is the pond water of a house that will stay clear, and be dwelt in, for a thousand years.
Commentary: Book Ten Poems of Celebration 631

Headnote: "Composed on the theme of celebration when the Lay Priest and Minister of the Right first took up residence at his Naka-no-in house"
Composed on the theme of celebration when the Lay Priest and Minister of the Right first took up residence at the Naka-no-in. How plain it is in the bearing of the flocking cranes, he says, that this is the pond water of a house that will stay clear for a thousand years. In the long-lived cranes flocking to the pond he sees a sign that the new residence will flourish for a thousand years, and so celebrates the master's move. Since the house is called the Naka-no-in, the Lay Priest and Minister of the Right is thought to be Minamoto no Masasada, known as the Naka-no-in Minister of the Right.
The author, "Master of the Office of Palace Repairs Akisue," was the son of Fujiwara no Takatsune. He served as Master of the Office of Palace Repairs and was a close retainer of Retired Emperor Shirakawa. Founder of the Rokujō Fujiwara house, he is known for beginning the Hitomaro Eigu, a rite honoring a portrait of Kakinomoto no Hitomaro.
Poem 613 of this book likewise sings of a pond that stays a thousand years: "the shore of the pond that stays clear a thousand years." Poems on cranes also continue here from 624 and 627.

First line, "murete iru": "gathered in a flock."
Second line, "tazu no keshiki ni": "keshiki" means look or bearing. The crane was believed to live a thousand years. It is the same word as in "keshiki kotonaru" in the fourth line of 623.
Third line, "shiruki kana": "shiruki" is the attributive of the adjective "shirushi," "clearly evident." "Kana" is an exclamatory final particle; the poem pauses here and stands in inverted order with the lines that follow.
Fourth line, "chitose sumu beki": "sumu" combines "to be clear," said of the pond water, and "to dwell," said of the master. It shares "chitose sumu" with the first line of 613 of this book.
Fifth line, "yado no ikemizu": "the pond water of the house," ending on a noun.
Author: Fujiwara no Akisue
Source: Senzai Wakashu
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