According to the degree to which the intellect is stripped of the passions, the Holy Spirit initiates the intellect into the mysteries of the age to be.
We know there are Angels and Archangels, Thrones, Dominions, Princedoms, Powers, Splendors, Ascents, Intelligent Powers or Intelligences, pure natures and unalloyed, immovable to evil, or scarcely movable; ever circling in chorus round the First Cause (or how should we sing their praises?) illuminated thence with the purest Illumination, or in one degree or another, proportionally to their nature and rank...so conformed to beauty and molded that they become secondary Lights, and can enlighten others by the overflowings and largesse of the First Light. Ministrants of God's Will, strong with both inborn and imparted strength, traversing all space, readily present to all at any place through their zeal for ministry and the agility of their nature...
As therefore the Lord does nothing without the Father, for says He, 'I can of mine own self do nothing,' so do you, neither presbyter, nor deacon, nor layman, do anything without the bishop.