Why is it difficult (counter intuitive) to imagine an entity (like an electron) that is a particle and a wave? I have seen in many texts/lectures that it is counter intuitive to imagine this sort of thing but I don't understand why. I have this image in my head that seems to make pretty good sense - it's an extremely small mass that oscillates and vibrates in response to the smallest increments of energy (this includes other waves like light). It also vibrates differently depending on the different types of waves it comes in contact with. Anyways, it's so small that it's mass can't restrict it from electromagnetic forces that cause it to vibrate and/or be attracted/repelled from other bodies. How is that hard to imagine? It's late and I think I'm missing something.