
Clearly the Yuuzhan Vong have a problem accessing/being accessed through the Force. To me, this indicates that the problem with the Yuuzhan Vong is midichlorian-based. That theory is substantiated by a brief mention in the New Jedi Order that the Yuuzhan Vong have an "extra" piece of DNA, common to all Yuzhaan Vong life thus far examined, but not found in any other life form.
As we have seen, midichlorians are the connections between the life form and life. Between the body and the Force. Just because the human eye only sees a tiny fraction of light spectrum does not indicate the non-existence of other wavelengths of light. It is possible, nay probable, that the spectrum of the Force that the Jedi can sense is similarly limited. Indeed, as the Force is sensed differently person to person, is it not also logical that the Force would be sensed differently species to species, further strengthening the argument that the Force is not limited to what a Jedi may sense. The Force is greater than any one being can sense or encompass.
With that statement as a basic tenet of my argument, we begin. Like any other life form, the Yuuzhan Vong must have midichlorians. Without midichlorians, life is not possible--another basis for my argument. In that case, all Yuuzhan Vong must have some amount of midichlorians, correct? Therefore, the problem is that the Force presence of the Yuuzhan Vong is somehow "blocked."
I think that somehow what that "extra" piece of DNA acts as a midichlorian blocker. If midichlorians emit in wavelengths, then it is theoretically possible to block them. This would be either by replaying the same waves perfectly out of phase (i.e. the additive property of sound waves), or to polarize the waves by passing them through a filter which only allows certain wavelengths in certain directions to pass through (i.e. polarized sunglasses).
Those wavelengths that are left, are in a direction are not prone to detection by Jedi, or other Force users. Therefore, it required a redirection on the part of the Force user to try to pick up something that normally isn't detected. It's like straining your ears to hear the screech of a bat. For some, it was easier with something to focus on. (Anakin and the lambent)
How did this come to pass? Well, next my next blog will cover that, according to my POV, anyway.