Allright, I'll take this up:
Atthe moment we are just determining the role texts play in determining the personal nature or even existence of a person.
My point is that it is not sufficient to say that its not reasonable to suggest that a person (whether it is god or benjamin franklin) actually exists since we only have books (even if you want to work with the absence of normative descriptions that surround teh act of knowing god, at this point) about them.
Even a casual system of investigation clearly reveals that we have a system of literacy and accreditation that makes certain personalities distinct from fiction.
IOW just because Alice in wonderland is a book doesn't mean a Concise history of america is also in the same sort of category.
No, it doesn't.
But three points:
One, notions of what is literature/fiction vs. what is non-fiction have changed over time.
Also, some books have clearly "changed genres" - for example, the Bible used to be considered strictly a religious text (in the West, that is), but nowadays, some file it among literary texts. Descartes' Meditations went from being written as and considered a religious text, to being considered a philosophical text (ie. considered neutral in relation to religion).
Another interesting issue is the relative relevance of a text. A text may be considered fictitious, but its message still taken seriously. A good historical example are Aesop's fables - people generally accept the moral reasoning presented through the fables, and do not get hung up on the fact that in those fables, animals are portrayed as being able to speak, or do things that animals do not do (such as foxes desiring to eat grapes and reaching for them).
In fact, much of Western education of children, and also for young adults and adults, especially concerning moral reasoning, is based almost exclusively on fictitious characters and fictitious stories. Whole generations were raised by phenomena ranging from the Teletubbies, Tom & Jerry, Popeye to the first three Star Wars films, by The Lord of the Rings and Harry Potter.
Which suggests that people are actually not so concerned with whether some discourse is fictitious or not, but whether it can be engaging, and this usually involves a discourse on values.
And thirdly, to get to your point about the system of literacy and accreditation that makes certain personalities distinct from fiction. I'm not so sure this is so clear, although there seems to be a great desire that there would exist such clarity.
Some historical personalities are canonized (within a particular culture) as being "real" as opposed to being "fictitious", and some texts and other artefacts are canonized as being "historically reliable" (and thus considered as supporting the notion that those personalities really existed) and others are not. But apart from this canon, I am not aware of any clear-cut rules as to how to establish, beyond doubt, that such and such really existed.
For example, we trust tradition when it says that Christopher Columbus really existed, but it is not like we can prove it ourselves.
If we take (a particular) tradition as the authoritative pramana, then this suffices to accept that God exists and that the scriptures are indeed talking about God.
But what when we do not take tradition as the authoritative pramana?