I am doing some research this summer with a professor and we are learning GR. For the first time I am thinking about gravity actually in terms of geometry and started to ask my professor questions. He is a VERY smart man but I didn't get exactly what I was looking for with one question. I asked if space actually was geometry, as opposed to say just math that is geometry that explains how things work and he said it was actually geometry. I believe this to be true and I like it a lot, but he also said gravitons are real. I asked how can gravitons be real in GR and he seemed to slightly side step it and tell me that both are correct. He is very smart and perhaps just didn't have the time to explain to me how both can co exist or perhaps it is a question that doesn't have a clear cut answer. That is what I want to ask you guys! Thanks for any help.