The difference between blue ray and green ray.

[Dtris]

Does a negative entity lose the blue ray only in 4D-on?  Or is the faculty and lack thereof a possible indirect measure of polarity in 3D?
If green ray accepts without complete understanding, and blue ray fills in those details ... Can new understanding ever shake the 5D positive out of the positive polarity?

Negative does not lose the blue ray (throat chakra), but chooses to suppress the green ray (heart chakra). This does happen in 3rd density, and continuous into 4th and onward. The Negative or STS entity uses the lower three rays as a springboard to the blue ray, skipping the green.

Ra said that it is always possible to switch polarities and is actually easier the farther along the path you are. I would imagine 4th and 5th density positive have changed polarities, and vice versa in the past.