(Hebrew יצירה; also Yetsirah or Olam Yetsirah) The third of four worlds in the Kabbalah. It is the world of formation and of the Angels.
"And IHVH Elohim יצר formed man..." - Genesis 2:7
"We cannot know anything about the Soul and Spirit when we do not know ourselves."
Samael Aun Weor, Tarot and Kabbalah