Iwashimizu kiyoki nagare no taeseneba yadoru tsuki sae kuma nakarikeri - Senzai Wakashu(English Translation & Meaning)

石清水清き流れの絶えせねば
宿る月さへ隈なかりけり

Roma-ji: Iwashimizu kiyoki nagare no taeseneba yadoru tsuki sae kuma nakarikeri
English Translation: Since the pure stream
of Iwashimizu's spring
never ceases to flow,
even the moon that dwells there
is free of any shadow
Meaning: Since the pure stream of Iwashimizu never ceases to flow, even the moon mirrored in its water shines without a single shadow.
Commentary: Book Twenty Shinto Poems 1280

Headnote: "Composed on the theme of the moon at the shrine when people composed poems for the Iwashimizu Shrine poetry contest"
He composed this on the theme of the moon at the shrine when people composed poems for the Iwashimizu Shrine contest. Since the pure stream of Iwashimizu never fails, even the moon dwelling in it is without shadow, he says. He overlays the unceasing flow of the clear spring that gave the Iwashimizu Hachiman Shrine its name with the unceasing blessings of the Hachiman god, and praises the purity of the sacred precinct, where even the moon mirrored in the water is clear without a cloud. In the main text, a sentence that appears to be a note on the preceding poem stands before this headnote, and the headnote and author's name are written together; here they are treated separately.
The author, "Nōren Hōshi," was a monk of the late Heian period. The details of his life are not known.
Like 1264 and 1265 in this book, it takes the moon at the shrine as its theme, setting the moon of Iwashimizu beside the moon of Sumiyoshi. Where the preceding poem, 1279, prays for the clouds to clear, this one sings of a moon shining clear without a shadow.

First line, "Iwashimizu": the Iwashimizu Hachiman Shrine on Mount Otoko in Yamashiro, working in the clear spring that gave it its name.
Second line, "kiyoki nagare no": the pure flow of water, overlaid with the unceasing blessings of the Hachiman god.
Third line, "taeseneba": "taesu" means to cease, and "ne" is the perfective form of the negative "zu," "since it never ceases."
Fourth line, "yadoru tsuki sae": "yadoru" means to be mirrored in the water, and "sae" means "even."
Fifth line, "kuma nakarikeri": "kuma nashi" means without shadow or cloud, and "keri" is an exclamatory auxiliary of realization.
Author: Nōren
Source: Senzai Wakashu
Prev Poem: Tsukiyomi no kami shi terasaba adagumo no kakaru ukiyo mo harezarame ya wa
Next Poem: Tokiwa naru Kannabiyama no sakakiba o sashite zo inoru yorozuyo no tame