The surrealist Chilean filmmaker Alexander Jodorowsky once commented:
"There are, in the genealogical tree, traumatized, unprocessed places that are eternally seeking relief. From these places, arrows are launched toward future generations. Anything that has not been resolved must be repeated and will affect someone else, a target located one or more generations in the future."
I have such a tree in my life. It is not my tree, but it has been both physically present on the road to my house, and symbolic, and it has carried my ancestral memories forward for 50 years.