I'm reading a lot of references about this today.. but I'm kinda confused.. so I need to know some basic to aid in the understanding and able to scrutinize the material. Wave function needs more 3 coordinates to specify a quantum state.. like 6 dimensions for 2 properties (like position and momentum) of one particle.. so it is obviously a mathematical operation. But I keep reading about wave function being ontic or real. Its like saying the formulas in my iphone apps are real which doesn't make sense. Are they proposing physical space is infinite dimensions so all these wave function and HIlbert space is factual? or do they mean wave function is real in the sense the amplitude squared really corresponds to the location of the object probabilities without saying the physical space has infinite dimensions (but this is simply the Born rule and I don't think this is related to the ontic thing)? What else does it mean? When one reads about this psi ontic thing or wave function being real. What really and exactly do they mean?