Another possibility is that the unstable orthography may have to do with the lively interpretive debate around the poem. Some medieval esoteric commentaries interpret the poem as a Buddhist allegory on death and as a lament for the death of prince Takechi. The prince is likened to a boat because of his great compassion and care for the well-being of the people. The boat hiding behind the island symbolizes the passing of the prince, which prompted Hitomaro to ponder death (shi) and impermanence. In this interpretation, the last line could be parsed as an honorific "o" preceding the noun “death” (( ºΔº )〣). So much history behind just one letter!
Gian-Piero Persiani
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