Yomo no umi no uraura goto ni asaredomo ayashiku mienu ikeru kai kana - Kinyo Wakashu(English Translation & Meaning)

四方の海の浦々ごとにあされども
あやしく見えぬいけるかひかな

Roma-ji: Yomo no umi no uraura goto ni asaredomo ayashiku mienu ikeru kai kana
English Translation: Though I comb the bays
of the seas on every side,
shore after shore,
strangely nowhere can I find
the shell, the worth of living
Meaning: Though I search every bay of the seas on all four sides, strangely I cannot find it anywhere: the shell that would make life worth living.
Commentary: Book Eight Love Poems II 461

Though he searches every bay of the seas on all sides, the poet cannot find, strangely, any shell, any worth in living. Using kai, shell and worth, as a pivot word, the poem laments having lost the will to live while unable to meet the beloved.
The next poem, 462, also sings of uraura, shore after shore, and kai, and the two form a set. Where this poem says that searching the shores reveals no worth, the next asks what worth there could be on shores where the waves come only rarely.

First line, 'yomo no umi no', means of the seas on every side, a line with an extra syllable.
Second line, 'uraura goto ni', means in every bay. It uses the same word as uraura wa in the third line of the next poem, 462.
Third line, 'asaredomo', means though I search, using the concessive domo.
Fourth line, 'ayashiku mienu', means strangely not to be seen.
Final line, 'ikeru kai kana', is a pivot word in which kai means both a seashell and the worth of living, left in kana. It closes with the exclamatory kana. Kai in the final line of the next poem, 462, is the same pivot word.
Source: Kinyo Wakashu
Prev Poem: Koiwaburu kimi ni au chō koto no ha wa itsuwari sae zo ureshikarikeru
Next Poem: Tamasaka ni nami no tachiyoru uraura wa nani no mirume no kai ka arubeki