In a way, I disagree. I think that we can accurately explain anything with the right words. Some members on this site are able to write trip reports that pull me into hyperspace with them, while others seem so dull that I question their legitimacy.
I do at least agree that if we are to try and explain these experiences to someone who had never used psychedelics, they would not have even a chance of understanding. I had one of my friends (who is helping me prepare my hyperspace fuel) read a sub-breakthrough trip report and he refused to believe that the author was not exaggerating! And that just a
sub-breakthrough report. What this tells me is that it is not just the language that prevents us from understanding, as this particular report was very vivid and made perfect sense to me. The people themselves are a limiting factor as well. Their experiences limit their comprehension.
Another example: When I first heard JZ Knight speak, I thought: "Wow this woman is batshit crazy." That was before using psychedelics. After using psychedelics, I heard her again one day and was shocked to see that while she was still batshit crazy, she was in essence describing a common psychedelic or mystical experience.
So to answer your question directly, about whether it is due to "our current evolutionary state," I would have to say no. It is not evolution, but it is our experience. My children, should I ever have any, will not inherently know the psychedelic mysteries until they experience it themselves, even though I understand it when I conceive them. Memories don't pass through with our genes to our children.
Now, some sociologists believe that there is such thing as
cultural evolution. That is, the culture of regions of the world evolve separate from the species. In that sense, I would say yes, it is our current evolutionary state that prevents us from understanding. Until the psychedelic experience is made into a sort of "coming-of-age ceremony" or initiation to adulthood, then the general populace will always think we are batshit crazy. I can't blame them. It sounds absurd until you've been there.
He led a double life. Did that make him a liar? He did not feel a liar. He was a man of two truths. - Murdoch, Dame [Jean] Iris
Kartikay is a character role that I play when I feel like escaping reality. Nothing I say under the pseudonym "Kartikay" reflects any of my actual life or personal history.