also why did they take the paintings down, and why did rosemary look at one of the paintings and quote her dream (you're lifting her too high) and why did that first girl die?
They took the paintings down so Rosemary wouldn't know that they were part of a satanic cult durr, and the first girl killed herself because Roman and Minnie were trying to do the same thing to her that they eventually did to Rosemary, if I recall correctly.
As for the quote I can't remember that part but next time I watch it I'll get back to you with my... words of wisdom