How did Mori cope with her mother's suicide in the memoir, The Dream of Water?

The first chapter begins as a flashback, to March of 1969, on the day of Kyoko's mother's death. She committed suicide in her own kitchen, placing a plastic bag over her head, unhooking the gas line from the stove, and breathing in the gas. The funeral arrangements were made quickly, a Buddhist priest presided, and Kyoko and her family performed all the formalities that people were supposed to perform at the death of a loved one. But what was missing from the ceremony was a true sense of feeling. The title of Mori's book Polite Lies captures the severity of this loss. Kyoko was not permitted to feel pain at her mother's funeral. She was expected to act brave and properly. She was expected to mourn—but out of respect not out of true misery. Shows of emotion were simply polite lies that lacked depth and masked true feelings. This, Kyoko came to believe, kept her and many other Japanese women locked in an impossible world, forever searching for resolutions that would never come.