Creation - “In the Beginning …”
Creation is seen to have taken place, in Western kabbalistic and alchemical terms, in the following process.

The Divine mind of God, the Absolute, or in Hebrew the Ain Soph Aur (Limitless Light), through a series of expansions and contractions establishes the boundaries of Creation. The first world is the most subtle, and closest to the original state of non-existence, and is Atzilooth. This is called the world of Fire, because of the lively, undefined, and almost uncontrollable nature of fire. Next is Briah, or the World of Archetypes and forms as our human mind can grasp them. It is symbolized as the World of Air, and is the result as a barrier world that is formed by the creation of the next World, Yetzirah, or Water.

This is the highly psychic and emotionally charged world immediately behind the veil of material existence, or Assiah. Also known as the World of Earth, because of the solid, concrete nature of material life.

The purpose of this scheme, is to show that creation occurs in increasingly dense levels of energy-matter, from the most subtle, or Fire, to the most dense, or Earth. Within this context of increasing density, there also arises a series of ten planes or levels of consciousness which combines with energy-matter, known as Sepheroth, or spheres of being. They occur in a pattern of: unity, reflection, polarity, reflection, polarity, unity, reflection, polarity, unity, and finally materialization. This basic idea of unity-polarity-and re-harmonizing, is the basis of kabbalistic and alchemical practices, and is derived from the observation of Nature.

Each World is a reflection to a denser or more subtle degree than the one before or after it. Each Sepheroth is a reflection, in part, of what proceeds or follows it. However, since each reflection is only partial, or slightly distorted, each Sphere takes on its own unique characteristics. Only the so-called “Middle Four Sphereoth” have the ability to harmonize or reflect in total all of the energies of creation, on some level.

This ‘zigzag’ of Creation is called the “Lightning Flash”. The return of energy from dense matter, back through the various stages, Sepherith, and Worlds of Creation is known as the “Path of the Serpent” because of its reverse, or complimentary ‘zigzag’ nature back up this diagram called the Tree of Life.

For the alchemist, somewhere between the third and fourth level, or sphere of creation, energy takes on the characteristic that will allow for the formation of matter at some future state, or level ten. This energy is called Prima Materia, Chaos in the Bible, Spiritus Mundi (Spirit of the Earth), and others. Here, duality is made complete, and genuine polarity exists, as opposed to simple the potential, or idea, of polarity that had existed previously.

Energy is divided into active and passive modes, with the active energy constituting the energies of life, and the passive one the energy of matter. In “The Golden Chain of Homer”, the active energy is called Niter and the passive energy is called Salt.[as in 'The Salt' of the Earth] the drawing in or attracting of, the active energy, 'intention', attraction / repulsion, lies in the middle until sensitized or desensitized, imho.
When Awareness [Father Light] knows Sensation [Mother Earth Ground], Consciousness [Son Electricity / Current] arises/alternates.