• "Not the brightest bulb [in the box / chandelier]": A common idiom used to describe someone who isn't very clever or quick-witted.
• "Bright spark" or "bright cookie": Informal, often slightly cheeky ways to describe someone who is smart or clever.
• "Let your light shine": A phrase meaning to display your talents, intelligence, or positive qualities openly and confidently.
• "Sharp as a tack": Another classic way to describe a quick, keen intelligence, even if it doesn't use the light metaphor directly.
Here then is the analogy. The top image represents highest possible cognitive perception. The bottom image represents the lowest possible cognitive perception.
Suggest that the top is a result of fusing of genetic material at conception, where there is only the slightest overlap of genetic code. The bottom represents the result of the worst case of inbreeding.
If the toroid itself were perceived as the human mind, in the top image worldview and perception is looking outward. In the bottom image the worldview is inward.
Relate this to the human mind, there are individuals with a perceived reality that is single-dimensional. There are other individuals where the human mind is capable of perceiving itself, from outside itself, therefore observing it's own cognitive ability. This would be demonstrated by the top image. The bottom image represents the mind only capable of single view perception.
Perhaps the top image represents what can be observed is a hyper inquisitive individual. Even from a distance their light shines very bright. The lower image is the individual, where you wonder, if anybody's home, did somebody forget to turn the light on.
Add into this mix, the perception that in nature, the firstborn would be the most robust genetically to continue the genetic branch. Perhaps as in a hive of bees, the first born would be the queen, all those born thereafter would be the workers for the community. That prevents extinction of a branch.
The lowest rung on the ladder, needs a faith, an ideology, a place to focus while they engage in a lifetime of toil supporting the community.
