In this passage, the character describes her method of coping with her emotions by drinking heavily until her trembling ceases. This act of self-medication highlights her struggle with inner turmoil and her attempt to find relief through alcohol.
After drinking, she slumps over the piano, comparing her state to a wilted spinach plant belonging to Celia, which has withered due to neglect. This comparison emphasizes her exhaustion and the sense of being drained, both physically and emotionally.