Operating in the spirit realm
Learning to operate the kingdom of God calls for a fundamentally different epistemology (a theory of acquiring reliable knowledge). In this physical world, we learn to rely on our bodies, which translate the stimuli of the surroundings through the 5 senses into electromagnetic impulses, which are in turn deciphered and interpreted by the brain as representing reality.
I should note here that we don’t ever directly perceive anything in this physical world, although it might appear that way. For instance, when I “see” a car, light is reflected off of the car’s body and onto the cornea, through the pupil onto the lens, and eventually onto the retina of my eye. So when my eye “sees” the car, it sees it upside down. At this point, “I” still haven’t seen the car. The image needs to travel further than my eyeball. It needs to get compressed into a message that is then sent through the optic nerve up to the brain, where it’s deciphered, and then “I” am finally able to “see” the car, right side up.
Similar mechanisms works for all of our other senses.