I am having a very difficult time picturing space-time and fields and all... Anyone here have a sort of flow chart or procedural chart that I could use to try to better wrap my head around what this place is? Sort of starting with universe and then going into spacetime and from spacetime to fields or if spacetime is a field then put fields first or however it is ordered and then placement for field excitations (particles) coming from which field they come from? Like a flowchart? Anyone have anything like that or maybe could you draw a rough sketch for me? Is spacetime a singularly unified substance or field? Is spacetime a collection of fields? Are fields excitations of spacetime or is spacetime an excitation of something more fundamental? If a force is an excitation of a field Is a field a non-excited force? What is the starting point exactly? etc?