There is an exquisite saying of Chazal, to which I would like to suggest an interpretation that underscores once again the value of careful study and detailed application of the science of language to the art of interpretation. Before I do so, however, I can resist sharing another interpretation with you.
The statement is: "R. Simeon ben Lakish said: The Torah given to Moses was written with black fire upon white fire, sealed with fire, and swathed with bands of fire. While writing it, Moses wiped off the reed on his hair -- thus he received the radiance that was to emanate from his countenance (JT, Shel. 6:1, 49d)
Some have approached this statement as referring to the actual writing as black fire and the spaces in between the letters as white fire. Thus R. Soloveitchik is reported to say that one must know how to read between the lines for some things are written in black fire but others are found between the lines, as white fire. For another such approach, see http://www.geocities.com/m_yericho/ravkook/VAYIK64.htm
Moshe Idel collected some of statements from the early Kabbalists in an excellent discussion of this saying in his Absorbing Reflections, an erudite, overlong and tedious work on interpretation methods in Kabbola (ch.1). Of particular interest is the following quote from R. Yosef Ergas, the noted contemporary of Ramchal.
"On the parchment... there is a likeness of an image...because under the YOD of ink there is one white YOD of the parchment which sustains the Yod of ink....if the letters will fly and disappear from (the parchment). it will remain white without any likeness at all".
What I think he is saying is that once you put a letter down on paper, you define the space under it, so that even if the letter is erased, that white under-letter remains, visible or not. Thus also, the letters of the Torah brought into being white fire, the space upon which they were imposed, and which was also eternal and pre-existent by the virtue of its suitability for the black fire that will eventually crown it.
Now to my suggestion.
What I might propose is that Torah employs a way of presenting information that relies heavily on omissions, in a way that makes what is not said communicate in tandem with what is said. Eric Auerbach in the first chapter of Mimesis pointed out that gaps, shadows, lack of description and reliance on the reader supplying the background is an integral feature of Biblical writing. It is these features that make Biblical writing so unique and pwerful. Perhaps then, this implied background is the white fire that outlines and complements the black fire of what Torah actually writes.
Here is a quote that expresses the concept beautifully, writing about poetry.
"Another way of saying the same thing is to suggest that that the white space between stanzas means something. If nothing is conceived to be taking place within it, if no kind of silent pressure or advance or reconsideration or illumination or perception seems to be going on in that white space, the reader has a legitimate question to ask," why is that white space there, and what am I supposed to do with it " (P. Fussel, Poetic Meter & Poetic Form, MCGraw-Hill, 1979, p.155)