Imagine the power of being able to say, with certainty, the sun will rise higher than it did the previous day, that the spring is coming, that rains are ending

Imagine the power of being able to say, with certainty, the sun will rise higher than it did the previous day, that the spring is coming, that rains are ending soon, and so on. I'm reading "The Human Cosmos" (Marchant). In it is proposed that lots of cave art / building was related to stars, and therefore seasons and therefore plants and animal patterns. It was a kind of future-telling. It appears in many, many cultures in strikingly similar forms. The Chumash in CA kept this kind of knowledge sacred and known only to a few. They used spirit quests, hallucinogenics, and celestial-inspired art to guard, interpret, and pass on knowledge. If these artworks are part of a teaching / fortune-telling ritual, then they would need to be hidden and preserved for generations.