I am on a sandbank in northern India. There is a full moon. The Ganges is the most sacred river of India if you speak to a Hindu for whom it is a goddess itself, bringing spiritual power from the abode of Shiva, creator and destroyer. It is a monumentally important river to an agriculturist, as its floodplain feeds a third of India’s population, to a geographer it transfers water and nutrients from the Himalaya in its flow, to an economic or military strategist it is a vital supply route, to an anthropologist is is part of the cradle of a civilisation that is twice as old as the pyramids.
There is a humourous anecdote I recall from years ago, where a somewhat puzzled child asks their father why Grandma spends such a lot of time reading just that one book. “It’s the bible, son, there are lots of lessons for us all in there.” A beam of enlightenment crosses the child’s face; “Oh, I understand, now, thanks; I guess she must be swotting up for her finals !”