Please, moderator, just delete this question if it is too silly. I am wondering what is happening in any one point in the SpaceTime field. That's what it is called, I think? Because my simple understanding is that we see colours/light because of propagated electromagnetic radiation at certain frequencies. And certain frequencies all have certain energies. So if I see green light, say, then electromagnetic radiation of a certain energy was passing through a point in space directly before my eyes and then entered my eye. Right? Now that point before my eye can be observed from an infinite number of places - i.e. anywhere on the surface of a sphere around that point. And it were then the colours, i.e. the energies, perceived would be different more or less for every single observation. So the energy you'd ascribe to that point would appear to be different for each observation post. Could be dramatically so. From one direction - white light. From 180 degrees away it could be black. What is going on in these points in spacetime? How are we to think of it?