Can you honestly say you have a firm understanding of medicine without doing what doctors do? Going to medical school?
Of course. You realize it's chemists, and not doctors, who create medicine, don't you?
Part of being a doctor is getting the education in the field and living it. A med student will not understand medicine as well as a doctor who has been practicing in the field for 20 years.
I don't know that their understanding of medicine would be less--quite the opposite, in fact; their heads are full of fresh information coming out of school--what they wouldn't be so great at is
being a doctor. That is, diagnosis, bedside manner, protocols etc.. That kind of stuff takes practice. But all you need to understand how medicine works is an understanding of biology and chemistry.
There are somethings you can only learn through experience. And we learn about history through the eyes of those who write about it. And the current history text books were not written by people who were there.
I'm not sure what you're trying to say here.
You could read my diary and get what seems to be an understanding of who I am, but the understanding you gain from my diary is dependent on my ability to accurately communicate my thoughts through words. Something I know I have trouble with sometimes. So in order to understand me, you would have to be me.
I think you overestimate the "you" in this equation. But first let me say that if the only historical record we had of seagypsy was her own writings, and those writings were sometimes confused and opaque, no one would claim to have an understanding of her. However, it's entirely possible to understand someone even without their own input. By considering actions and third-party accounts in context, it's possible to get an accurate picture of historical figures even when there aren't private letters or diaries to fill in the blanks.
As far as the "you" thing goes, I think you're under the misapprehension that you're this totally unique being floating around in the world. In reality, you're just another mammal. Your motives are probably no different than someone else's who behaves like you do, and your actions probably follow a logical path that make sense when taken as a whole. (there are other implications if they do not, of course) Obviously, if this is your belief, you're welcome to it, but I'm always going to take exception to it.
I am using a very strict definition for the word "understand" perhaps your definition is less strict, in which case, I can understand your disagreement.
Four of the five definitions of "understand," including the first definition, do not fit your own. The other is close, but I don't think it applies to something like faith. I do think, however, that you have your own personal definition that is probably creating the confusion here. Not that there's anything wrong with that, but it tends to lead to disagreements and, as I said, confusion.
I'm thinking you can never understand what it is like to be pregnant or to have a menstrual cycle because you are not a woman. As a woman I never understood what it was like to be a mother until I became one myself. Am I mistaken?
I think so, yes. Can I "feel" it? Can I live it? No. But I can understand it. I know what happens, I know what to expect and what the various difficulties can be. Perhaps you have included "feeling" and "living" in your definition of "understand," but I don't find that to be fair or accurate. Imagine the implications a benign statement such as "Do you understand me?" takes on in that context!
To the point, I can understand both what Islam says in its scripture and how it is practiced by its adherents without being one myself. I can understand what it means to be a Muslim, what is sacrificed and what is gained. This simply requires inquiry and observation, not first-hand experience. I can also understand what prayer does to the mind even though I don't pray. I may not know exactly how it
feels (or I might, depending on how the experience is framed by actual theists; for instance, if they say it's like being wrapped in a warm blanket, that's a feeling I experienced just last night) but I can understand what it means to them.