**** This is a very important part of the Course. ****
Jesus is telling is clearly here that the physical world of FORM, all objects, all matter, the physical universe, the world, are NOTHING, it is the way that we experience a 'wall of sin' which stands between us and God, and we are quite literally incapable of seeing God while we use the body's eyes to see.
It is also telling us that the physical universe is not reality. Perception of 'form', which means, physical materials, objects, people's bodies, the planet, etc... if you are seeing that, you are seeing an illusion.
This is very hard for many people to accept even intellectually yet alone to experience this truth. "There is no world" fits right in here.
So it's one thing to wake up to the point of still seeing the physical world and yet somehow 'seeing God in it' because God is in your mind. Okay, that's a step closer. BUT... that's not going all the way.
Jesus is telling us from a CHRIST perspective, that we have to become able to recognize that ALL FORMS ARE ILLUSIONS and that there is a REALITY that is beyond form, formless, in which you not only live your real life with God but you also are completely infinite and unlimited.
It's not enough just to find a different way of perceiving form. It's not enough to learn to not judge form. It's not enough to overlook your personal judgements or mental distortions or guilty attitudes about the world or yourself. That is not the end of the story.
We are asked to really go ALL THE WAY.... to go beyond form entirely. To go all the way to IMMORTAL SPIRIT. To transcend all forms and all physical matter and all of space and time. To go all the way to the complete and total and permanent awareness of the ONE REALITY. That reality is completely abstract and has NO FORMS IN IT. None. No objects. No bodies. No physical universe. No planets.
So that means, it's important to learn at some stage how even the body's senses are misleading you, how you are deceived by the appearance of differences and objects, how the physical world is actually set up to BLOCK you from God, and how the world PHYSICALLY STOPS YOU from being with God by completely deceiving your awareness.
You need a vision which transcends form. A vision which sees Christ. And that doesn't just mean seeing Christ in your brother or seeing Christ in the body-self of your brother. It means seeing past ALL FORM to the Christ and ONLY SEEING THAT.
Not just to see and be aware of God, but to see and be aware of NOTHING ELSE as well.
As Jesus says, "There is nothing about me that you cannot attain. I have nothing that does not come from God. The difference between us now is that I have nothing else. This leaves me in a state which is only potential in you." - ACIM