The emanation is conceived, according

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to esoteric teachings, to have originated, at the dawn of the universe's manifestation, in The Supreme Being who sent out—from the unmanifested Absolute beyond comprehension—the dynamic force of creative energy, as sound-vibration ("the Word"), into the abyss of space. Alternatively, it states that this dynamic force is being sent forth, through the ages, framing all things that constitute and inhabit the universe.

Origins of the concept
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The concept of planes of existence might be seen as deriving from shamanic and traditional mythological ideas of a vertical world-axis—for example a cosmic mountain, tree, or pole (such as Yggdrasil or Mount Meru)—or a philosophical conception of a Great Chain of Being, arranged metaphorically from God down to inanimate matter.

However the original source of the word plane in this context is the late Neoplatonist Proclus, who refers to to platos, "breadth", which was the equivalent of the 19th-century theosophical use. An example is the phrase en to psychiko platei.[1]

Conceptions in ancient traditions