Angels, and “above this level of watchful angels there is a higher level, and there is a higher level above those also”, until they all receive their life from Hashem aspect of Malchus-Kingship, like it says (Tehilim 145:13): “Your Kingship is what creates and gives life to the Kingdom of all worlds”, since it creates all the worlds literally something from nothing.
And all of this creative power is only a “radiance” of His Shechina (Divine Presence), which itself is only like a ray of light compared Hashem’s Essence, which is truly Infinite, He always was, He is, and He will be forever without any change whatsoever, like we say in the daily prayers: “You are the same before the world was created as You are after the world was created”.
This contrast between Hashem, who is Infinite and unchanging and the material matters that are only an expression of the lowest possible level of spirituality that is countless levels removed from even Hashem’s aspect of Kingship, is a contrast from one extreme to the other extreme.
Hashem is Infinitely exalted above all the levels of angels and revelations, and the material world is countless levels removed from Hashem’s “radiance” that becomes that source of life for worlds.
After contemplating deeply into the ideas described above, the contrast between Hashem’s Infinite greatness compared to the relative trivialities of material concerns, using all his mental concentration and focus, he will then be awakened with great and fiery love and yearning to the spiritual darkness and concealment of this physical world, and he will only want to connect to Hashem.
Like it is written (Tehillim 73:25): “Who do I have in heaven besides You [Hashem], and besides for being with You I don’t want anything on this earth!”
Meaning, that he will come to not want any spiritual levels at all, not the Lower Level of Gan Eden, or even the Higher Level of Gan Eden, which are only a like a “ray of light” of Hashem’s revelation, as our Sages say (Brachos 17a) that in Gan Eden “the righteous dwell and enjoy the radiance of the Shechina,” rather, he will only want to connect to Hashem, to experience how he is just a part of Hashem Himself with no independent existence, which is called in the Zohar (I 217b): “to become absorbed in the Essence of the King”.
When someone is really involved in something, he forgets about himself, he “loses himself”. Depending on how great the thing he is involved in the greater he will “lose himself”. For example, someone involved in learning can forget about himself to a certain extent, but not as much as when he is fully involved in dancing at his best friend’s wedding where he totally forgets about himself and acts silly because he only experiences what is happening now, not his own personality and limitations. More than this- a soldier in battle forgets about himself completely to the point that he can even risk his own life, or willingly give up his own life because he experiences the battle and dedication to the cause more than his own life itself.
