“The subterranean layers of the Earth (or any planet or star) represent the kingdom of minerals (lithosphere). The kingdom of metals is the barysphere that envelops a heart of incredible density and frightful inertia. We must make a clear distinction between the mineral kingdom and the kingdom of metals. Among minerals, the group of metals is a cosmically separated group. A little beyond the kingdom of metals, there exists a certain very rare type of matter that has closer contact with the Absolute (with the Ain Soph Aur). We must comprehend profoundly that the Almighty Holy One abides behind the kingdom of metals. The Ray of Creation begins in the Absolute and ends in the Inferno; but what is beyond the Inferno? It is clear that beyond the Inferno, behind the kingdom of metals, the Absolute is found.” – Samael Aun Weor
Physically, we have three nervous systems, namely, central nervous system, grand sympathetic nervous system, and parasympathetic nervous system. Physically speaking, our three nervous systems are receiving and transmitting the three primary forces of the universe, which are energy, electricity.
The main seven metal mines of any planet form the nervous system of that planet. So beyond the nervous system, beyond the metals, we find the Ain Soph Aur, the Absolute. Thus, the light that comes from Ain Soph Aur ends exactly in the ninth sphere of any planet, which we call Inferno from the Latin word infernus (inferior). So, this is how the nature of the light of the Sun can be understood from this point of view. The light from the Absolute, from the Unknowable Divine to the Holy Trinity, and to the seven rays descends and develops in different grades, which we explained are related to the seven main metals of any planet, especially the Sun.
When the stellar rays reach our earth, they produce colors, sounds, and metallic elementals which then condense into metals. Metallic elementals that evolve become plant elementals; plant elementals transform into animal elementals; and then animal elementals finally become humans (their divine sparks-Monads awaken in order to incarnate for the first time within them) who eventually will become angels in order to return once again to their Father who engendered them.
“All this descent and ascent of the virginal sparks [of light] through this journey of matter is symbolized by the ladder in Jacob’s dream.
“What is iron? It is the soul of “Samael-Mars” evolving there.
“What is copper? It is the soul of “Uriel-Venus” evolving there.
“What is lead? It is the soul of “Orifiel-Saturn” evolving there.
“What is gold? It is the soul of “Michael-the Sun” evolving there.
“What is silver? It is the soul of “Gabriel-the Moon” evolving there.
“What is tin? It is the soul of “Zachariel-Jupiter” evolving there.
“All this flux and reflux of life resounds in all of nature with the Chinese gong.
“Upon the arrival of the cosmic night, all the sparks (of light or Monads), converted into flames, return into their stellar Fathers, and their stellar Fathers return into the Unmanifested Logos to submerge themselves into the limitless bliss of the Absolute, where neither tears nor pain exist, where we are all “one,” where we are all “that Seity,” the “unnamed,” “that,” “that,” “that.”