Why exactly do negatives entities inevitably need to switch polarities?

[Aion]

36.15 ▶ Questioner: Well, then let’s say that when Himmler, for instance, reaches sixth-density negative at the beginnings of sixth-density negative, at this time would it be [the] case that an entity would realize that his higher self is sixth-density positively oriented and for that reason make the jump from negative to positive orientation?

Ra: I am Ra. This is incorrect. The sixth-density negative entity is extremely wise. It observes the spiritual entropy occurring due to the lack of ability to express the unity of sixth density. Thus, loving the Creator and realizing at some point that the Creator is not only self but other-self as self, this entity consciously chooses an instantaneous energy reorientation so that it may continue its evolution.

Basically, they realize it is in their own self interest. It is the paradox of seeking the illusion of separation with the awareness of unity. It is kind of the final 'dissonance'.