Why should 6th density beings downgrading themselves to 3th density?

[Matt1]

6th Density beings reincarnate into 3rd density to evolve quicker. The idea of coming back to experience something very different from there home vibration will create an huge amount of growth that may not be possible in a density that is so balanced. The 6th density negative entity realizes that it cannot evolve any further and drops the negative persona and sees the wisdom in doing so. Based on my understanding of what Ra said.

This Planet can be said to be some what of a unique experience because of the distorted contact in Atlantis. Thus those we attempted to aid got ourselves karmatically entangled in this density and felt the honer/duty to help lessen the created distortion as much as possible.