But after He created this Idea [this limited and existing-in-intellection Nature, which the ten Numerations, SEPHIROTH or Rays are], of the Medium, the First Man ADAM KADMON, He descended therein, that, by means of this Idea, He might be called by the name TETRAGRAMMATON; that created things might have cognition of Him, in His own likeness.
When the Infinite God willed to emit what were to flow forth, He contracted Himself in the centre of His light, in such manner that most intense light should recede to a certain circumference, and on all sides upon itself. And this is the first contraction, and termed צמצם, Tsemsum.
אדם קדמון, ADAM KADMON, the Primal or First Man, is the first Aziluthic emanant from the Infinite Light, immitted into the evacuated Space, and from which, afterward, all the other degrees and systems had their beginnings. It is called the Adam prior to all the first. In it are imparted ten spherical numerations; and thereafter issued forth the rectilinear figure of a man in his sephirothic decade, as it were the diameter of the said circles; as it were the axis of these spheres, reaching from their highest point to their lowest; and from it depend all the systems.
But now, as the Infinite Light would be too excellent and great to be borne and endured, except through the medium of this Adam Kadmon, its most Secret Nature preventing this, its illuminating light had again to emanate in streams out of itself, by certain apertures, as it were, like windows, and which are termed the ears, eyes, nostrils, and mouth.
The light proceeding from this Adam Kadmon is indeed but one; but in proportion to its remoteness from the place of out-flowing, and to the grades of its descent, it is more dense.
From the word אצל, ATSIL, to emanate or flow forth, comes the word אצילוח, ATSILOTH or Aziluth, Emanation, or the System of Emanants. When the primal space was evacuated, the surrounding Light of the Infinite, and the Light immitted into the void, did not touch each other; but the Light of the Infinite flowed into that void through a line or certain slender canal; and that Light is the Emanative and emitting Principle, or the out-flow and origin of Emanation: but the Light within the void is the emanant subordinate; and the two cohere only by means of the aforesaid line.
Aziluth means specifically and principally the first system of the four
Olamoth [עלמות], worlds or systems; which is thence called the Aziluthic
World.
The ten Sephiroth of the general Aziluthic system are ten Nekudoth or
Points.
איןות, AINSOPH, AENSOPH, or AYENSOPH, is the title of the Cause of Causes, its meaning being "endless" because there is no limit to Its loftiness, and nothing can comprehend it. Sometimes, also, the name is applied to KETHER, or the CROWN, the first emanation, because that is the Throne of the Infinite, that is, its first and highest Seat, than which none is higher, and because Ainsoph resides and is concealed therein: hence it rejoices in the same name.
Before that anything was, says the Emech Hammelech, He, of His mere will, proposed to Himself to make worlds … but at that time there was no vacant space for worlds; but all space was filled with the light of His Substance, which He had with fixed limits placed in the centre of Himself, and of the parts whereof, and wherein, He was thereafter to effect a folding together.