Well, actually we do, but only in the form of Consciousness.
All appearances of form and physicality are optical and sensory ILLUSIONS.
Nothing is ''physical''. Not the ''planets'', not the Earth, not You, not your PC, and not your keyboard.
Whatever we call physical matter is composed of atoms, including our physical bodies.
Atoms are considered ''the building blocks of the physical universe''.
Yet, when examined with a powerful microscope, an atom is seen to comprise empty space.
The nucleus in the middle is actually very tiny in relation to the atom in reality, and was famously compared to a grain of sand in the middle of a cathedral. Even the nucleus itself has been found to be a mini-atom, ie, consisting of empty space.
Why then do we ''see'' and ''feel'' physical objects?
One reason is that what we ''see'' is really not what is there. (Or rather, is just one form of possibly billions of possible representations of what is there).
The world we see is only in existence at the back of our brain, where the electromagnetic signals picked up by our eyes, are converted into a dense 3D ''physical'' format, complete with colour and surround sound.
This is exactly the same way a TV decodes electromagnetic signals into a colourful, raucous football match, or blood-curdling gangster film.
Our bodies and brains are likewise, receivers, connected to a biological ''internet'', in which we receive and decode electromagnetic signals according to a uniform pre-determined format. Some believe the author of this format to be God, while others believe it to be a group of lower level intelligences.
If that format, or wavelength, were to be changed, we would decode those signals in an entirely different manner.
Much of what we call religion, magic, meditation, psychic power, juju, etc, are at base, attempts to override this format, or matrix - our limited five-sense straitjacket - and access other, more efficient methods of decoding reality, in order to influence/alter its physical, 3D manifestation.