[Terretta]

> There is a lot more on the role of gods and magic in [this book] ... One theory is that divination functioned as a kind of RNG for those cases when picking something at random was better than relying on your own bias, such as when and on which flank to attack an opposing army - where being unpredictable is a feature.

Or, you could have discovered that stated about one scroll down from top of the article:

"And sometimes it is better to have a truly random decision than to continue to follow the predictable inclinations of one’s established prejudices. Surely, the enemy will not be able to predict a shaman’s completely random decision."