Mi ni tsumoru kotoba no tsumi mo arawarete kokoro suminuru mikasane no taki

身に積もる言葉の罪もあらはれて
心澄みぬる三重の滝

Roma-ji: Mi ni tsumoru kotoba no tsumi mo arawarete kokoro suminuru mikasane no taki
English Translation: Even the sins of words
piled high upon this self of mine
are washed and laid bare,
and my heart has grown so clear
by the falls of threefold height.
Meaning: Even the sins of words that have piled up within me are washed away and laid bare, and my heart has become clear at the Three-Tiered Falls.
Commentary: Miscellaneous Poems 1118

Headnote: "Worshipping at the Three-Tiered Falls, I felt them especially sacred, as though even the sins of the three kinds of deeds were being rinsed away"
Worshipping at the Three-Tiered Falls in Ōmine, Saigyō felt them especially holy, as if the sins of body, speech, and mind were washed away. Even the sins of words piled up within him are washed clean, and his heart has grown clear by the falls.
The "three" of the Three-Tiered Falls is matched with the "three" kinds of deeds, expressing purification by water washing sin away. Especially in naming "the sins of words," one sees the poet's awareness of the Buddhist view of poetry-making as the sin of frivolous, ornamented words.

First line, “mi ni tsumoru”: piled up within me.
Second line, “kotoba no tsumi mo”: the sins of speech, implying the sin of composing poems as well.
Third line, “arawarete”: arawa pivots on sins being "washed" and the true nature being "revealed."
Fourth line, “kokoro suminuru”: the heart having grown clear, associated with the water of the falls.
Fifth line, “mikasane no taki”: the name of a waterfall in Ōmine, ending on a noun that answers the three kinds of sinful deeds.
Author: Saigyō
Source: Sankashu
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