a more dense illusion?

[Ruby]

Questioner: Then when our planet is fully into fourth density, will there be a greater gravity?

Ra: I am Ra. There will be a greater spiritual gravity thus causing a denser illusion.

I am curious about this. What is meant by a denser illusion? What would a denser illusion be like? I always imagine a sort of lightness or thinning when I imagine moving "up" so I find it marvelous and curious that Ra says this. Can things be more real, more clear? Are things more focused so one experiences a sort of condensation? I associate growth with freeing myself of illusion, but illusion becomes denser?

Oh and one more thing. Ra says "a greater spiritual gravity". Not a physical but spiritual gravity...is spiritual gravity more like gravitas suggesting a weightier sense of value or meaning?