"Only the mind sees". "Minds do not need bodies to communicate."
Mind by itself has awareness and SEES in the light. It needs nothing else for this seeing to work. This seeing is not perception at all. But when we went into the separation, we invented a separated state where we do NOT see only with the mind, and instead INTERPRET. "Perception is fundamentally judgemental". This interpretative mechanism is like a filter, which is a layer over the mind. Another term for this mechanism is the belief system.
The mind, in a sense, is now looking UPON or "through" the belief system, through perception. At the same time, the body is now sending signals into the mind from outside to report on an illusory world. The body is set up to only see the world with false perception, permanently, and to "see objects" as if they are real. It shows images of these objects to the perceptual mechanism. These are images of hell, an inability to see reality and a blindness by perception of form, regarding physical matter as "really there".
The belief system then INTERPRETS what the body is showing it. The belief system/perception now categorizes various things into separate boxes and labels them per the meaning it gives things, and assigns meanings to them. The mind, looking at these boxes, then "sees" the meaning that perception gave TO what the body's eyes were looking at.
Additionally when the belief system is not one of wholeness, certain images are spiritualized and others are ignored. Fear is used to shut out from awareness whatever the perceptual system does not want to see or believe in, and "acceptance" into the mind is permitted to the things it does want to see and believe in. Jesus says that whatever you VALUE, you will BELIEVE IN, and whatever you BELIEVE IN, you will WANT TO SEE, and because you want to see it, you will make yourself see it IN whatever the body is showing you. Projection makes perception, and obviously that is a state of hallucination.
So the belief system is now giving meaning to what is seen in the world and is interpreting it and hallucinating that it is something it's not. This means the perceptual SYSTEM is now a system/filter based in false perception, the body's eyes are also based in false perception, and so now the belief system is "lined up with" or in accord with/believing what the body reports without questioning it. That is unconsciousness, in which you take whatever the body shows you as "real".
In order to move away from this, the body's eyes continue to report the same photon-based false perceptions of fake objects as before, an illusory world seen as real, but the perceptual mechanism/belief system now REINTERPRETS the meaning and purpose of what is being sent to it. This leads to "true perception", which is a REINTERPRATION of the world "The Holy Spirit is the great re-interpreter of the world you made."
In true perception the belief system has been purified and equalized and all the meaning you gave to a meaningless world has been ironed out. Instead of a fragmented interpretation, there is now an interpretation/filter based in a reflection of the laws of God, which is wholeness. The belief system is still being bombarded with body-world-is real images but it now categorizes them all as UNREAL. It has to, in order to see with love, because the body can ONLY show you pictures of hell seeming to exist (solid objects) and so the mind has to learn NOT to believe what it is being shown. It has to recognize that this picture of crucifixion is actually not true, not real, not really there, and not happening. It looks PAST those illusory images and OVERLOOKS them, which is forgiveness
The mind's belief system now is a system of forgiveness which doesn't fixate on the surface of objects that the body is trying to report still, but instead overlooks those images entirely and sees the face of Christ BEYOND them, because it is now having mind-to-mind perception, BYPASSING the body's sight and practically ignoring the images the body presents. The body's images become like a "thin veil" before the face of Christ, because their LIES are SEEN THROUGH (REASON sees THROUGH the forms of error) so much that they become transparent. The light of Heaven is seen as being BEYOND what the images report, and the forms of matter are recognized as nothing.
All of these REINTERPRETATIONS of "the world you made" and "the world you see" (with the body) that the body is fixated on, with its false perception, are now "seen truly", with true perception, and recognize the illusion AS an illusion, not as reality. It looks past it to the light of Heaven. But what's happening now is the MIND, which is the only thing which SEES, is now looking AT the "reinterpreted images", while also looking through them TO SEE ITSELF, to see Christ. The belief system becomes transparent. The body images become transparent. The light of God is shining through the whole "system" of mind/perception/body and providing a REFLECTION of Heaven in the world. A symbolic representation of "light within darkness". The mind having true perception is looking a this fake world "in quite another light."
At this point though, the mind still is having perception, albeit true perception, and it is still in two minds. It is still having a separated state, perception, with a belief system. It's just that the belief system now is more or less empty, and God's truth is seen truly as true. Only the truth is true. The mind doesn't NEED the perceptual mechanism in order to SEE with Christ Vision, and the body and its signals have now been overlooked ENTIRELY. The whole "world" that the body was reporting as "there" has been SEEN THROUGH. And Christ has been glimpsed beyond the images.
The images of the world disappear, the body disappears, the mind stops having a belief system, perception comes to an end, the "filter" is removed, the separation is undone, and the mind now returns to a state of PURE MIND, in which there is no body and no world and no perceiving. In this state, sight is KNOWING, and knowledge of the Kingdom of God has been restored. This is the "sight of the Son of God." It is being IN Heaven. Recognizing where you really are and who you really are as Christ. And communing with God in fullness, which wasn't possible while the separated state of perception was lasting. Now perception is gone, the world is gone, the body is gone, and all that remains is your natural state of being. The entire world of bodies has literally become TOTALLY INVISIBLE to you and does not exist.
In summary, the mind sees, and while there is body/perception, the mind sees what the perception/belief system SHOWS it, which is an INTERPRETATION of what the BODY shows the perception/belief system. And as the mind sees BEYOND the body and perception, it sees itself as Christ and sees nothing else. This is all supported in various ACIM statements about seeing, vision, perception, sight, body's eyes etc.