Seeing as if 4D

[anagogy]

I don't think the first density being skips second density, I believe that they just progress through their second density still incarnate in their first density body complex. "No portion audits the course" is not incongruent to an entity ascending through the densities in a "lower" level body complex. Ra says that it's purely the will of the entity that thrusts it upward, not its ability to appreciate nuance. An 'enspirited' mountain could have been here on earth for millions of years. Are you saying it must somehow be destroyed and reborn anew to progress with the earth through its densities?

No the 1st density structure of the mountain is not destroyed, its 3rd density consciousness simply vacates that structure and incarnates in a 3rd density body.

In the quotes I bolded in post #3, Ra says that once an entity becomes "third density activated", that they have access to the rest of the rays. You say you don't think it's "that kind of love", but Ra says a second density entity can vibrate in the green-ray center. I'll take Ra's word that, having moved into the yellow-ray portion of their being and thus able to vibrate in the green-ray, that it's even possible for them to vibrate in the indigo center then, as well.

I think its important  to draw a distinction between possibility and probability.  They might have the "potential" for all vibratory rates, but realistically that won't happen till they have the machinery to properly do 3rd density work.  We all have the "potential" to activate our denser bodies and be like gods, but it almost never happens.  

The fact is, humans were genetically altered to be as different as we are from our second density forms. This is not normal. It's typically a gradual progression, which means the line in the sand you are drawing may be slightly skewed.

Gradual, yes, in evolutionary terms, but most of the differences were likely intended by the Logos.  For example, consider this section where Ra gives their opinions on the 3rd density form:

90.12 Questioner: Was there a reason for choosing the forms that have evolved upon this planet and, if so, what was it?

Ra: I am Ra. We are not entirely sure why our Logos and several neighboring Logoi of approximately the same space/time of flowering chose the bipedal, erect form of the second-density apes to invest. It has been our supposition, which we share with you as long as you are aware that this is mere opinion, that our Logos was interested in, shall we say, further intensifying the veiling process by offering to the third-density form the near complete probability for the development of speech taking complete precedence over concept communication or telepathy. We also have the supposition that the so-called opposable thumb was looked upon as an excellent means of intensifying the veiling process so that rather than rediscovering the powers of the mind the third-density entity would, by the form of its physical manifestation, be drawn to the making, holding, and using of physical tools.

And also consider this section:

19.11 Questioner: Can you tell me how this new bodily complex was suited to third-density lessons and what those lessons were?

Ra: I am Ra. There is one necessity for third density. That necessity is self-awareness, or self-consciousness. In order to be capable of such, this chemical complex of body must be capable of the abstract thought. Thus, the fundamental necessity is the combination of rational and intuitive thinking. This was transitory in the second-density forms operating largely upon intuition which proved through practice to yield results.

The third-density mind was capable of processing information in such a way as to think abstractly and in what could be termed “useless” ways, in the sense of survival. This is the primary requisite.

There are other important ingredients: the necessity for a weaker physical vehicle to encourage the use of the mind, the development of the already present awareness of the social complex. These also being necessary: the further development of physical dexterity in the sense of the hand, as you call this portion of your body complex.

You can see in this section Ra specifically says the chemical body must be capable of abstract thought.  A mind may be 3rd density, but it needs a body that "fits it".  Otherwise it is kind of like wearing a pair of mittens on your hand, as opposed to a regular glove, and trying to type something on a keyboard.  The individual fingers are not allowed to function at full capacity because the structure doesn't allow for that nuanced dexterity.

To be fair, there may be complexity to mineral structures that function like brains and we simply don't understand how they work.  My thinking is maybe some types of crystals could somehow function as rudimentary "brains" in some weird way for these mineral locations that become 3rd density harvestable.  The same is probably true for the vegetable kingdom, albeit something different than crystals.

"Appreciating the nuance of the illusion" seems like a bias from your higher-density point of view, where you have chosen this incarnation to experience the intricacies of development in a structured environment. All entities learn at a different pace, and none are limited to their access of the Creator by something as mundane as the manifestation of their body complex in space/time. Is that not what the quote in your signature means?

Not precisely from my perspective.  Consider another Ra quote:

105.14 Questioner: Then the yellow-ray body, from the very beginning, was designed as what Ra has called an athanor for the mind, a device, you might say, to accelerate the evolution of the mind. Is this correct?

Ra: I am Ra. It is perhaps more accurate to note that the yellow-ray, physical vehicle is a necessity without which the mind/body/spirit complex cannot pursue evolution at any pace.
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