Not just scientists but all of us are comfortable with things we can see and touch. The history of modern medicine consists largely of tracking down solid objects that cause disease, although most of them dwell in the realm of the invisible, beyond anything the naked eye can perceive.
Without a microscope, what would a bacterium be? Something invisible to the eye and yet as big as the world, since it reaches every locale on Earth, even the poles. It would come and go like smoke, penetrating the tightest sealed doors and windows–if you believed only in your sense, the ability of such an organism to be nowhere and everywhere at the same time would seem fantastic.
In essence, the quantum world is but another step down the scale of invisibility. Unlike the tiniest bacteria or viruses, a single photon, electron, or any other object in the quantum world can never be seen using any extension of sight and touch. They are truly everywhere and nowhere at the same time.
Quantum physics has taken responsibility for measuring things that are as small as possible. We experience the subatomic void every time we think. Just as in the universe at large, something material–the neuro-peptide–springs out of nowhere. It is not the atoms of the neuro-peptide that are created, because the necessary hydrogen, carbon, oxygen, and so forth are already present in the glucose that the brain uses as fuel. What is created out of nowhere is the configuration of the neuro-peptide, but that is magical enough.
At the very instant that you think, “I am happy,” a chemical messenger translates your emotion, which has no solid existence whatever in the material world, into a bit of matter so perfectly attuned to your desire that literally every cell in your body learns of your happiness and joins in.
The fact that you can instantly talk to 50 trillion cells in their own language is just as inexplicable as the moment when nature created the first photon out of empty space.
Adapted from Quantum Healing: Exploring the Frontiers of Mind/Body Medicine, by Deepak Chopra (Bantam Books, 1990).