The poem is a single line, and that brevity is part of what it says. The speaker looks back at someone who hurt them and admits a wish: that the whole world could know how much that pain cost. Nothing else is given. We don't learn who "you" is, what happened, or whether the speaker is still hurting. The poem leaves those gaps open.
What comes through is a longing to be witnessed. The speaker doesn't ask for revenge or an apology. They want recognition, as if the pain has stayed private and unacknowledged, and carrying it alone is part of the hurt. The past tense, "wished," suggests the feeling may be settling into memory, though it could just as easily mean the wish has never gone away.
The mood is quiet, raw, and a little lonely. Because the line is so short, it feels like something said under the breath, a confession with no room for explanation. The silence around it makes the pain seem heavier. The title, "Bai," adds a note I can't confidently read, so I'll leave it open.