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I think great writers are deliberate in the levels they weave into their narratives, and this is partly what makes them great. Shakespeare was famous for this. The plots, characters and emotions could appeal to people of all types in the audience, but there were sophisticated nuances of psychology, moral dilemma, strategy, and politics designed as food for thought for those in power.
I never forgot the lessons of King Lear, and sure enough, when my mother developed dementia in her old age, my younger sister behaved just like the older ones in The Bard’s story. It meant I could prepare (encouraged Mum to see her solicitor and write an Advanced Health Directive to make her wishes clear) and so when the inevitable challenges came, I could deal with them legally.