The Creator is the force of nature, the attribute of bestowal called Light. This is the Light of Hochma that created life and revives, it is the Light of warmth.
The “thick darkness” is an allegory for the concealment of the Light. There is a Masach (screen) that conceals the Light of Ein Sof (Infinity) like a veil, a cloud, as if it is in a kind of a capsule. A person doesn’t perceive or feel that it exists! But when he begins to form a Masach, he gradually removes the layers of the cloud of concealment accordingly.
In other words, there are five levels of desire in me. If I acquire a Masach on top of my first finest desire, I remove the finest layer of concealment (which is also made of five parts) and seem to partly enter this cloud.
When I continue to work, I focus the anti-egoistic Masach more accurately on me and advance in this cloud. To the extent that I can dress in the altruistic intention and in love of others, I enter the cloud. Thus, I attain a state in which I discover the Light, the attribute of bestowal directly in me. Gradually I become free of my ego and a person of Light.
Question: Why isn’t this last phase described in any of the books?
Answer: No one has attained the phase of the end of correction yet, it will happen only in the general end of correction. So there are still more presents and great revelations ahead.
From KabTV’s “Secrets of the Eternal Book” 3/4/13