The only reasonable certainty behind the titular characters is that they are enigmatic--various problems obfuscate the act of psychoanalyzing them. The main problem is that a fictitious character's "true" nature (i.e., their nature according to the author), which is evidenced by incomprehensive, possibly unrealistic, and ultimately biased, narrative accounts, is even harder to know than the nature of real humans, which itself is not completely knowable because psychology, and, indeed, much of science, are imprecise. Furthermore, another problem is the possibility that the author did not intend a character to have a "true" or single nature--he might have wanted their nature to be hazy, to be decided on by the reader; or he might have been unsure or unconcerned about the character's nature, using them as pawns to achieve other goals, and attempting to find a "true" nature is reaching past the limits of the art.
It follows, then, that a reasonable analysis must make assumptions about the intentions of the author, upon which guesswork, composed of reasonable assumptions based on evidence, must stand. In many cases, the most satisfactory analysis results if the authors intended characters to be abstract, because it requires only internal evidence, and the other two intentions--intending a single "true" nature, or disregarding this nature completely--require extraneous evidence, such as a full explanation of his work by the author--evidence that is often impossible to attain. In this case, with a dearth of extraneous evidence, it must be assumed for the sake of progression that the author intended the abstract. And
It follows, then, that a reasonable analysis must make assumptions about the intentions of the author, upon which guesswork, composed of reasonable assumptions based on evidence, must stand. In many cases, the most satisfactory analysis results if the authors intended characters to be abstract, because it requires only internal evidence, and the other two intentions--intending a single "true" nature, or disregarding this nature completely--require extraneous evidence, such as a full explanation of his work by the author--evidence that is often impossible to attain. In this case, with a dearth of extraneous evidence, it must be assumed for the sake of progression that the author intended the abstract. And