Yes. Sticking only to the realm of hard science, the frontiers keep expanding (e.g. dark matter and energy). When it comes to our subjective perceptions and how the the brain assembles them into consciousness, we've barely a clue.
Scientific apparatuses have allowed us to "see" the complete elecromagnetic spectrum, the cell, the quasar... psychedelics may be an apparatus allowing us to see dimensions of reality heretofore unquantified.
Scientific apparatuses have allowed us to "see" the complete elecromagnetic spectrum, the cell, the quasar... psychedelics may be an apparatus allowing us to see dimensions of reality heretofore unquantified.