Why does Colwin say her life has been much enriched by ghastly meals?

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Colwin says her life has been much enriched by ghastly meals because, in her experience, these meals have provided her with interesting stories to tell and unforgettable memories. She believes that even though the meals may have been terrible, the experiences and interactions that accompanied them have made them valuable and worth remembering. These ghastly meals have added layers to her life and have become stories that she enjoys sharing with others.