I-16 The ruling Hierarchies on Earth and its three former Conditions of Consciousness, respectively

Universe, Earth and Man (UEM), Lect. 4 (pp. 52-53)

In the same way that Elohim (Gen 1,1), or Exusiai, ruled the Earth evolution, so also did higher Hierarchies rule prior incarnations of the Earth.

It was the sacrifice by the ruling Hierarchy during each such period that made the development of the human being possible during that period, i.e., physical (Saturn), etheric (Sun), astral (Moon) and Ego (Earth), respectively.