Not sure what to make of this. At first I laughed because of the twist about the real reason she couldn’t get out of bed. Then it dawned on me that the dog could be a metaphor for something else – a terrible illness perhaps. Certainly ‘dark, morbid shadow’ does paint a more grim perspective. Literal or symbolic?
I like brevity. Most people utter so much nonsense that by the time they do chance upon an enlightened phrase, a pearl of wisdom they’re already lost the listener.