Ka mau i te ata

Every version of this pūrākau agrees on the turning point, even where the smaller details are told differently from place to place. One morning, Uenuku did not let her go.

Maybe it was an ordinary kind of wanting — the sort that grows in anyone who has spent enough nights with someone they love, a simple unwillingness to watch her rise and leave one more time. Maybe he told himself it would be fine just this once, that the light wouldn't come as fast as it always had before, that surely one morning wouldn't matter the way all the other mornings had mattered. Whatever the reasoning was, he held her past the point where she needed to go, and the sun came up while she was still there in his house.

And she was seen. That is the detail that matters most in this telling — not simply that daylight found her, but that daylight found her in front of others, standing in his house in the open, in a form that was never meant to hold together once the sun was properly up. She was shamed by that exposure in a way that had nothing to do with anything she had done wrong. She had kept her side of the bargain faithfully for as long as it had been kept at all. It was Uenuku's decision to hold on past the hour that undid her, and she was the one left standing in the light, seen, unable to simply melt back into the hills the way she always had before.

What happened next is described the way mist genuinely behaves when the sun finally reaches it — not a dramatic collapse, but a rising away. She lifted up off the ground and out of his house and away into the sky, the same motion mist makes off a valley floor every single morning, except that this time it was her leaving him for good rather than returning to him that night. She did not come back down.

Uenuku's grief at this point is not glossed over in the tellings that carry it. He had broken the one condition that had let their love exist at all, and he had lost her because of it, and there was no undoing that by wanting her back hard enough. What he did instead was rise after her — not to bring her home, because that was no longer possible, but to be near her in whatever way was left. He became the rainbow, arching up out of the same air she rises into as mist, always positioned close to where she lifts off the land, never quite touching her, a permanent nearness instead of the reunion he actually wanted.

This is why, in the places this story is told, a rainbow appearing over a misty valley is read as the two of them still together in the only way left to them — Uenuku bent across the sky toward the place where Hine-pūkohu-rangi is rising, close enough to be seen standing beside her, never close enough to hold her again.

There is a plain, unsentimental lesson sitting inside this grief, and the story does not try to soften it. Some things are given to you on a condition, and the condition is not cruelty — it is simply the truth of what you have been given and what it can bear. Holding on past the point you were told to let go does not get you more of the thing you wanted. It very often costs you the whole of it, and what is left afterwards is not the relationship you had, but a permanent, visible ache standing at a careful distance from what you lost — which is exactly what a rainbow over a misty hill still looks like, told this way, every time.