 In the Zohar, the sin of Adam and Eve (who embodied Adam Kadmon below) took place in the spiritual realms.Their sin was that they separated the Tree of knowledge (10 sefirot within Malkuth, representing Divine immanence), from the Tree of life within it (10 sefirot within Tiferet, representing Divine transcendence).This introduced the false perception of duality into lower creation, an external Tree of Death nurtured from holiness, and an Adam Belial of impurity.