classic waka stream

As a sign they say
The cord beneath should come loose
When one is loved so.
Yet my under-cord stays tied—
So you cannot love as said.

Meaning
They say that when someone is loved, the cord of the under-robe comes loose as a sign. Yet my cord has not come undone, so you surely cannot be loving me as you claim.
Commentary
111. One Never Yet Seen

There was a certain man. Someone in the household of a high-ranking woman had died.
The poem is the woman’s reply to the man’s poem, which he sent as if in mourning: “Long ago perhaps / Such a thing may have been said— / Only now I know: / To love someone unseen yet, / One whom I have never met.”

Feeling no sincerity in the love poem sent by a man she had never met, who had delivered it under the pretense of mourning, the woman composed this poem to say that the love he speaks of must surely be a lie.

This poem is included in the Gosen Wakashū as a poem by an anonymous poet.
Source
Ise Monogatari
Other