I first traced a koru with my finger when I was six years old, following the carved ridgepole of my grandfather's wharenui near Rotorua. Each curve recorded descent; each unfurling frond declared new growth. I did not yet understand whakapapa. I understood only that the shape was alive.
The Geometry of Ancestors
Unlike Western ornament, the koru is never symmetrical. It breathes. The silver fern frond — Cyathea dealbata — unfurls in a logarithmic spiral that both mathematicians and carvers recognise as belonging to a deeper order. In the wharenui, kowhaiwhai scroll patterns run along the rafters in rhythmic repetition, each a variation on descent and return.
The koru does not represent the ancestor. It is the ancestor — arriving in the present through the hand of the carver.
Rangi Matawhero, master carver