This concept of the four phases of Direct Light is very confusing.
If the Creator’s intention was not for us to receive directly, then, that means all of our work is to build this screen on top of every phase of our development. I think that is very difficult.
If Bina didn’t have the same light as Hochma, then why is it called four phases of direct light and not four phases of a different light? Because this concept of directlight somehow means that the light was the same.
What is a phase?
The light of Hochma was expelled. How did Hochma expel the light? What mechanism did Hochma use to expel the light?
You said that The Light of Hochma was expelled. What do you mean by that? Is it possible to reject what you already received? And what if the giver refuses to take it back?