From her poem “Daddy” we can see the confinement and death laden imagery:
You do not do, you do not do Any more,
black shoe In which I have lived like a foot
For thirty years, poor and white,
Barely daring to breathe or Achoo.
Daddy, I have had to kill you.
You died before I had time-- Marble-heavy,
a bag full of God,
Ghastly statue with one gray toe Big as a Frisco seal
In another poem she intimates the almost died from a swimming accident at the age of 10. We also know that she also attempted suicide when she was 20 years of age. Plath was hospitalized for swallowing a bottle of sleeping pills and crawling into a hole in a wall in her cellar, where her mother found her two days later.