The Beginning of a Dynasty
Viski Lasi had three goals with his life on the Divine Throne. First was the founding of the New Church, second was the lessons of civilization which he gave to the Yathai. The last was the continuation of the divine bloodline. Both the first and the second were achieved, but the last one remained. It was a matter not easily solved, as he was the only one of his kind. If he was to have descendants, he would naturally have to choose a mate from among the natives.
A number of things made him believe this was not as simple as chosing at random. First of all, the pripary reason he was believed to be the Steward of the Gods was due to his appearance. Being a Gorimari, he had dark skin and red hair - a combination never seen among the Yathai who were generally bronze-skinned and had raven black hair. He was also of a much taller and larger build than most Yathai. As he was quite different from his followers, he deemed it wise to seek out the more unique among them as well.
One thing in particular that caught Viski Lasi's interest was the eyes. Some of the Yathai had grey eyes, where most had brown. A tiny percentage also had green eyes, like his. Those with green eyes also had a tendency for slightly lighter hair color, ranging from auburn to maroon, greatly resembling that of Viski Lasi. These variations were actually the last remnants of a different people arriving the Yathanai islands many centuries ago, who were assimilated and made indistinguishable from the Yathai.
When it was declared that the Godsent was looking for a mate, all unmarried women of proper age were summoned. Of these, the ones with green eyes were selected and sent to Viskas for an audition. About fifty were gathered and all of them housed in the palace harem newly constructed. Then, a ceremony began. The twin goddesses themselves would choose the one to carry the descendants of their Steward. The ceremony consisted of a series of tests, and only one of them would remain. Literally.
It was a cruel trial. First, the candidates went through a test of the mind. Here, they had to answer to riddles and provide solutions for dilemmas. Those who did not impress in this test were sent away to practice. If they failed on the next attempt, they were again sent to practice. If they failed on the third attempt, they were sentenced to death. Only thirty of the fifty survived the first trial.
The second trial was a test of the heart. Here, the candidates were sent through a course where they had to show courage and strength of will. Those who failed this trial were given a second chance. Regardless of success of failure, all of the candidates were sent through a second course which was even harsher and more extreme than the first one. Many died in the attempt, but more were sentenced to death due to failure. Only twelve survived the second trial.
The last trial was a test of the body. It was, put simply, a death tournament between the candidates. Given one obsidian blade each, the contestants battled eachother one on one in front of the palace. At last, after three rounds, there were only three left. This presented no problems, as the remaining three naturally had to fight eachother all at once. Of the fifty, there were only three left - and there could be only one...
EDIT: I kinda forgot to tell, but the Yathai are rather warlike, with bloody conflicts between the tribes quite commonplace. Even women are expected to defend the village when attacked, and it's not so surprising to see female tribe chiefs. This means Yathai society is remarkably egalitarian, and family lines are traced through the women. Most Yathai identify themselves as "(name), son/daughter of (mother's name)".