Te tautohetohe a ngā tuākana teina

There is a moment, in the middle of Tāwhirimātea's storm, that gets told quickly but deserves to be slowed right down: the actual argument between Ikatere and Tū-te-wehiwehi, right before they parted for good.

Picture it properly. The wind is tearing at the water. The family that has always lived together — cousins to sharks and rays, cousins to lizards and insects, all descended from Punga — is being battered from every direction, and there is no time to sit down calmly and work through the options. Ikatere is telling his brother, urgently, that the water is where they need to go, that the sea will hold them, that this is their place and it will protect its own. Tū-te-wehiwehi is telling him just as urgently that the water is exactly where the danger is coming from, that they need to get out of it entirely and find solid ground and cover under the trees.

Both of them are frightened. Both of them believe, completely, that they are giving the correct advice to save their people. And neither one can make the other see it. That is the detail worth sitting with — this is not a story where one brother is wise and the other is foolish and gets his comeuppance. The kōrero is quite deliberately even-handed about it. Ikatere's descendants, the fish, have thrived in the sea ever since. Tū-te-wehiwehi's descendants, the reptiles, have thrived on land ever since. Both decisions worked, on their own terms, and yet the brothers still could not agree, and the family still split for good.

What this argument produced, beyond two very different groups of descendants, is a lasting explanation for why sea and its creatures on one hand, and land and its creatures on the other, exist in a kind of ongoing tension rather than easy unity. Fishing itself carries the memory of that old rupture. To catch a fish, a person from the land has to reach across into Ikatere's realm using tools made from Tū-te-wehiwehi's — nets and hooks and lines fashioned from harakeke (flax) and from timber, materials that belong to the forest, sent out into the water to bring back something that belongs to the sea. Every successful catch is, in a very real sense, a small act of reconciliation between two brothers who could never agree, achieved indirectly through their descendants working with what each side has to offer.

This is also, in some tellings, connected to the wider and more famous falling-out between Tangaroa and Tāne — the sea and the forest more broadly — where Tangaroa is said to have never forgiven Tāne for sheltering the family members who abandoned the water during the storm. Ikatere and Tū-te-wehiwehi's private disagreement between brothers becomes, at a larger scale, part of the reason the sea is still described as eating away at the shore, still taking back a little of the land, tide after tide, generation after generation, because of choices made in a single storm none of them asked for.

There is real value in noticing how this whakapapa treats an irreconcilable argument. It does not pretend the brothers eventually made up, and it does not force a moral onto the story where one of them turns out to have been right all along. It simply lets the disagreement stand, permanently, as the honest cause of something real that people still live with today — the genuine, sometimes uneasy relationship between the water and the land, and everyone who depends on both.

If you take one thing from Ikatere's side of this story, let it be this: when you are next standing at the edge of the water with a line or a net in hand, you are not just fishing. You are quietly repeating an old act of reaching across a divide that opened between two brothers who loved each other and still could not agree, in the middle of a storm neither of them chose. Treat what you take from that water with the respect due to a relative from the side of the family that stayed apart — because in this whakapapa, that is exactly what it is.