The poem tells the story of a girl who is bullied, abused, and finally driven to end her life. It begins with a blunt list of what was done to her: teasing, shouting, hitting, and being told she was worthless. The short, repeated lines of "They" make the cruelty feel relentless, like blow after blow.
The turning point is her mother. When the girl cries out to her, the one person who should offer comfort instead agrees with the bullies. That betrayal seems to leave her with nowhere to turn. The speaker is a distant narrator, but the flat, simple telling suggests grief and anger on the girl's behalf.
The mood is bleak and heavy. The quiet park and the final line on the tombstone, "At least, for once, she was silent," are bitterly ironic. Her pain went unheard while she lived, and silence is all that is left. The poem deals with self-harm and suicide, and it is painful to read.