And the light shineth in darkness, and the darkness did not comprehend it.Douay-Rheims, John 1:5
Meister Eckhart says that the soul is always looking to God. In that she is always linked to the Source of all knowledge, of illumination, so that she may come to know the things of God’s creation and the true knowledge of God. To deconstruct the terminology a little further, it should be said that the spirit looks upon God, as the spirit consists purely of intellect and will. Now, to say that the spirit looks upon God, is to say that it always receives its knowledge through this gaze; that is to say, it cannot come to know anything whatsoever unless it comes through the Source.
When I look upon my computer screen at the words I type, my eyes transfer an image to my mind which associates that image with some knowledge in my intellect. Yet, the knowledge in itself is not something which is sourced solely from my intellect alone, rather, it is bestowed upon my intellect by the knowledge received from God. It is almost as if my spirit is a pinhole on the wall of a dark room, and God is the light which pierces through from the illuminated side into the darkness. My spirit is simply a portal by which the Pure Light of God emerges to illuminate my soul and, therefore, my mind.
My will can act as to allow this light to pierce the darkness of my creaturely mind, or act to block it out and focus solely on the reflections of light which my soul receives through the senses. To conform the will to that of God’s is to leave the mind completely open to the Source of Light, and allow It to penetrate the darkness of the soul. The more that the will is conformed to the Light, the more the portal of their spirit can increase and allow more of the Light to flow inward. Until finally, what was once complete darkness is now light, as seen with the Saints and Angels.
The Saints and the Angels are so transparent and passive to the Light of God that It flows into them and then outward through them into the created world. Much like how the Uncreated Light of God burst forth from the Person of Jesus Christ when He was transfigured on Mount Tabor. Through this openness to the Light of God, we can become beacons of the Light, in a sense become one with It, so that we may act with the fullness of the begotten Will of God.
Now, regarding intellect once more: some are gifted with great power of the intellect, with a natural increase of the Light within their soul. Yet they do not identify it as of the Godhead. Rather, they determine it to be their own light, their own intellectual power. In a way, rather than become a mirror through which the Divine Light is reflected to the world, they instead encapsulate It inward for their own ends. As Our Lord said in the Gospel of Mark:
Doth a candle come in to be put under a bushel, or under a bed? and not to be set on a candlestick? For there is nothing hid, which shall not be made manifest: neither was it made secret, but that it may come abroad.Mark 4:21-22
Some hide this Light for themselves, using it for their own will and end; while others set the Light in the open so that all may enjoy Its warmth and illumination. Therefore, to open oneself to the Will of God, to allow the Light to pierce the darkness of the soul, is to allow God to transform oneself into a mirror of that Light. That the Glory of the Father, and of the Son and of the Holy Spirit may illuminate the darkness of this world and draw all things to Itself.