I didn’t have that consciously in mind but I guess there are many father and son stories that riff on similar ideas from the Bible to Star Wars. I got the idea from an old travel article by Paul Theroux who talked about a memory priest of a remote tribe who holds the memories for the whole tribe for a number of year's before retelling them by way of cleansing and exorcising the tribe. I gave it a SF element, the ‘tribe’ came from a distant planet and colonised Earth many years ago, and upped the drama to a father and son relationship and sacrifice. Many thanks for reading.