classic waka stream

瑞垣の久しかるべき君が代を
天照る神や空に知るらむ
Roma-ji

Mizugaki no hisashikarubeki kimi ga yo o amateru kami ya sora ni shiruramu

English Translation
Like the sacred fence
it is bound to long endure,
our lord's reign, and this
the god who shines in heaven
knows from on high, I think
Meaning
Our lord's reign is bound to endure for long; surely the sun goddess who shines in heaven knows it from the sky above.
Commentary
Book Five Celebration Poems 328

The sun goddess who shines in heaven surely already knows from on high that the sovereign's reign will long endure, the poem says. Naming Amaterasu, ancestral goddess of the imperial house, it celebrates the long reign as one watched over by the gods.
The preceding poem, 327, and this poem form a pair celebrating the long reign through a river of old legend and the sun goddess.
The author, Tametada, is Fujiwara no Tametada. A son of Fujiwara no Tomonobu, he served in posts such as Governor of Tango and was the father of the brothers Jakunen, Jakuchō and Jakuzen.

First line, 'mizugaki no', means of the sacred fence, a pillow word attached to hisashi, long-lasting.
Second line, 'hisashikarubeki', means bound to endure long.
Third line, 'kimi ga yo o', means our lord's reign.
Fourth line, 'amateru kami ya', is the god who shines in heaven, Amaterasu, the particle ya binding with the attributive ramu in the final line.
Final line, 'sora ni shiruramu', means does she know it from the sky, closing with the present conjecture ramu.
Author
Fujiwara no Tametada
Source
Kinyo Wakashu
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