You see a red circle moving across the computer screen, but in reality there is no red circle, the only real thing is a excitation moving though the R,G,B field

You see a red circle moving across the computer screen, but in reality there is no red circle, the only real thing is a excitation moving though the R,G,B fields of the screen. The same with particles. They are as real as the red circle. A convenient illusion which simplifies things and computations.