I'd liken it to the salvia experience.
In a similar vein, if someone would ask a distinguished professor of neuroscience to provide a full description of the exact brain molecular state that "generates" an exact salvia experience (including any communicative content), s/he would fail.
As someone who has done both, in similar settings, I'd still disagree with this. Datura was devilish like none other and probably one of the few psychedelics I'd never do again.
Datura taught me a valuable lesson exactly once, about hubris.