But higher states of mind are evident. Caveman did not become an Einstein or a da Vinci in one quantum leap. It was done by mind evolving to ever higher grades of understanding. But at the same time, Mystics tend to prefer a discussion to a conclusion.
There's an old tale about young man in old Greece who overheard a group of Wise Men arguing at length as to how many teeth were in the mouth of a horse. As the story goes, they went back and forth for hours. The young man interrupted and suggested they open the mouth of a horse and count the teeth. It was rather forcefully suggested he leave. The young man was an Occultist, the group of Sages, Mystics. Mystics cannot tolerate Occultists.
As another story goes, there was a crowd of people in India waiting on the bank of a river for the Ferry. Among them was a famous Hindu Master. No doubt trying to impress the Master, one fellow, a Mystic, said to the Master, "I have meditated almost my entire life. I can levitate across this river." The occultist Master replied, "what a shame you wasted all that time and effort. For a dime you can cross on the Ferry."