Seven Rays: LOO Vs. Traditional Esoteric Sources

[Plenum]

My personal view is once everything is one, the universe should have  holographic and fractal nature. So, the hermetic principle of correspondence (as within, so without; as without, so within) should be real. With this in mind, the characteristics of the chakras and densities are the characteristic of the seven cosmic rays.

Red-Ray: Foundation
Orange-Ray: Growth
Yellow-Ray: Self-Awareness
Green-Ray: Love
Blue-Ray: Wisdom
Indigo-Ray: Power
Violet-Ray: Consciouness

This is probably the clearest distillation offered by Ra, regards the Journey of the Soul.

From 49.6:

Each experience will be sequentially understood by the growing and seeking mind/body/spirit complex in terms of survival, then in terms of personal identity, then in terms of social relations, then in terms of universal love, then in terms of how the experience may beget free communication, then in terms of how the experience may be linked to universal energies, and finally in terms of the sacramental nature of each experience.

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It's quite possible that the above wording is quite specific to 3rd density, and speak to the 7 sub densities (of 3d).

After all they used the word 'survival' in reference to red ray, and yet - would Survival be the best word for red ray in first density? Or 6th density?

So you've chosen the concept of Foundation which Ra also used for red ray. That is perhaps a broader generalisation.