God and his Kingdom are a perfect hologram, in which the whole is in every part, and every part is the whole.
But then there was a separation. The separation was an event where we tried to deny the wholeness but keep the parts.
If another name for the wholeness is "non-duality" (or oneness), and another name for the parts is "duality", we tried to keep the duality and reject the non-duality. To "separate off" our selves from God, retaining only our separate selves without sharing anything.
This resulted in what we call seemingly spacetime - the dream of separation - which depicts "exclusive duality" as though it's ONLY duality with no oneness.
In spacetime we have perception. Perception can go to extremes of denial and acceptance of God. In false perception it rejects the oneness entirely, while in true perception it accepts it.
True perception shows you "the real world", which is another way of saying "the world as it is without the distortions of your insanity projected onto it".
This "real world"... has a quality of WHOLENESS. This wholeness is sort of like a dream version of oneness. It is also called the face of Christ. It's like the wholeness aspect of God's divine hologram but in dream form - as a "picture".
So as you reach the real-world level of perception, you're entering into a sort of holographic experience of spacetime. That is, you are accessing a sense of oneness and wholeness and unlimitedness, in which you expand to the size of the universe and seem to contain all of it within you.
In this view, you see that the whole is in every part. Every object's separateness no longer "means" or "tells you" that separation is true. Instead, you see the WHOLE reflected in every part. As though, all of the PICTURE of wholeness is present in every individual object.
This isn't merely the same as waking up and being more alert and seeing the same separate objects head-on with some kind of enhanced alertness. It's a mindset in which you have this greatly expanded wholeness, a sort of reflection of oneness, which is seen to TRANSCEND all boundaries and separations.
This transcendental experience shows you that the REFLECTION of God is in every part and speck of matter ("God is in everything I see"). All of God is pictured "in" every grain of sand. Not simply that God has squeezed himself into one grain, but that he is simultaneously in each and every individual grain, and not in any kind of compromising way either. ALL of him is in EVERY part.
Note however the main difference between the holographic experience of spacetime and heaven, is that heaven is an ACTUAL perfect hologram, whereas spacetime is an IMAGE OF a perfect hologram - a PICTURE. This is why it's also called the FACE of Christ and not Christ itself.
So in our waking up here in/from this world, we should expect to find that the seeming separate differences of objects matter less and mean less. Their forms don't tell us of a hierarchy. All differences become equal and irrelevant. We overlook them, which is forgiveness. And instead of focusing on letting the forms BLIND us to a oneness, we instead see a transcendental oneness pervading the forms and showing that the forms are a way of OBSCURING the hologram.
I have had an experience of God some years ago in which I came to this experience and saw very clearly this exact dynamic, in which the WHOLE was seen in every object, and each part contained ALL of God. And this revealed to me the way that when you focus on the separate objects and forms they OBSCURE the fact that God is all-in-all, and instead present a "broken picture" in which there is NO WHOLE IN ANY PART. And that's the difference between true perception and false perception.
I found a couple of segments in ACIM that speak to this sort of "holographic experience" of the world. Note here when it talks of a "picture" it is saying an image, not the ACTUAL thing but a PICTURE OF it - once removed from it.
"The Holy Spirit's Function is to take the broken picture of the Son of God, and put the pieces into place again. This holy picture, healed entirely, does He hold out to every separate piece that thinks it is a picture IN ITSELF. To each he offers his identity, which the WHOLE picture represents, instead of just a little, broken bit, which he insisted was himself. And when he sees THIS picture, he will RECOGNIZE himself. If you share not your brother's evil dreams, this IS the picture that the miracle will place within the little gap, left clean of all the seeds of sickness and of sin. And here the Father will receive His Son, because His Son was gracious to himself." URT28E7
"I thank you, Father, knowing you will come to close each little gap that lies between the broken pieces of Your holy Son. Your Holiness, complete and perfect, lies in every one of them. And they ARE joined, because what is in one IS in them all. How holy is the smallest grain of sand, when it is recognized as being part of the completed picture of God's Son. The forms the broken pieces seem to take mean nothing. For the Whole is in each one. And every aspect of the Son of God is just the same as every other part. Join not your brother's dream, but join with HIM, and where you join His Son, the Father IS." UrT28E8
Anything to do with the body, and what's inside the body, is thought to be "mine only", and not yours. We describe ourselves in terms of what is exclusive to ourselves. As if to say, I have my own this, and that, my own attributes, stuff that belongs solely to me and is not shared with you.
My body, my mind, my face, my personality, my feelings, my thoughts, my life, my power, my abilities, mine mine mine. This is how our egos think of ourselves. But this is completely unnatural and not at all how God set things up.
Believing you are separate from God and others, you exclude them from yourself and see yourself as not sharing anything. The body becomes a device for separation, and our egos tell us we are cut off and cannot share with anyone. Like we're alone on an island, and afraid because we depend on our own (lack of) power.
But what we really are is a part of God himself. Like, you are cogs in his machinery. God is everything, so if we say we are separate from God, we're saying we do not have everything. And that leaves us with nothing left. That means if we are without God, we are nothing. A lack of God is a lack of life, which is death.
God created us not by separating us off and setting us apart to be nothing like him or each other. Not did he disconnect himself from us when he extended our being. In the creation of our souls he literally put himself into us, so that his own attributes would be shared with us. He went into us and stayed there BEING our attributes.
God cannot actually create anything outside of or separate from himself, just as ideas cannot leave the mind. That's because he's already infinite and everywhere. But he can share himself internally and include more within what already exists. So he extends and shares what he already has.
This means anything you have has to be inherited from God, but also must still belong to God. You can share it, but you cannot have it exclusively. You cannot steal it away from God and call it "only mine." But so long as you share it with him and all his creations, you can have it.
So then it's not like you have your own anything. It's more like, God loans you his stuff. He himself goes into you and his own strength is what you call the strength in you. And his mind is shared with you and thus your mind is really his mind in you. And his thoughts and his will are shared with you. His love and his happiness and his peace are in you, as yourself, as his.
As the course tells us, we are either host to God or hostage to the ego. Being a host means you make room within to accommodate the presence of someone else, and to share your stuff with them. By hosting God, it's like you are literally having God come into you and dwell within you. You then share everything with him, not just in a separate compromising way, but he actually BE's your stuff.
So now there's God in you being mind and spirit, and what seems to be your mind and spirit is actually one with his and is his. You don't actually have anything that is just yours. There's his stuff, and he shares it with you so that it is yours as well. But it's not yours alone.
Nothing belongs to you alone. Absolutely everything is shared. That's why atonement is a lesson in sharing - because we forgot how to share and to be shared - ego/separation is an idea of selfishness and exclusivity.
This is a whole different way of describing yourself and your identity and what you are. Instead of saying "I am this and that", it's more like "God in me is being my this and that." Any happiness in me is actually God being happy in me and sharing his happiness with me. Any love in me is really God's love and God sharing his love with me so that I also have it.
In heaven it's kind of like a giant banquet buffet, where everyone can have access to everything simultaneously, everyone shares everything, everything is available to everyone and no-one can hog or hoard anything. Every part of you is part of God. Every attribute of your own is an attribute of God. You are immortal and divine, because you are part of HIS immortality and divinity.
So the whole aim is to get your sense of who and what you are away from this exclusive separate idea of "only I am this and that", defining yourself in terms of what belongs only to you. When you do that you are "hostage to the ego". We need to be moving toward an attitude of "God in me is this and that and I share his this and that." We need to be host to God again, in us and through us.
God's is the mind with which I think. God is the light in which I see. God is the love with which I forgive. God is the peace in which I am peaceful. Love created me loving. You have nothing OTHER THAN what God himself is BEING in you.
This is why you have inherited everything from God, and therefore everything real is given you. It is also why you are still as God created you - because what you are is an extension of his own self. You can't be anything separate from God. Whatever you are, is a part of his own, because you are ONE.
You thus actually have a symbiotic relationship with God in which you depend on God for your entire existence. It's not just about you trusting God like a separate person, but you actually getting your very existence, life, mind, joy etc from God himself. You depend on him to BE your life, your happiness, your love, your will etc. You need him to be these things FOR you.
Your eternal life is sustained BY him. Your innocence is guaranteed BY him. You have all power in heaven and earth because he shares HIS power with you, without which you have no power.
We need to get our heads out of this definition of self in terms of what I am exclusively, what is only mine, what belongs to me alone, what stuff I can say about my separate self that isn't shared with God. We need to have ONLY that which comes from God, and we need to deny anything that is not of him being a part of ourselves.
And we need to realize that if we think that we have personal exclusive attributes, we are being separate from God. And if we are separate from God, everything that is really a part of us and worth having is actually IN God and is a part of himself. So if we want it, we have to stop being separate from God and go be ONE with him and use HIS stuff, BE his extension.
This entails not only acknowledging that God is our creator, which undoes the authority problem, and that we are his creation and co-creator, bur it also entails realizing that getting with God is the ONLY solution possible to ALL your problems.
There is really only one problem which is a sense of being separate from God. By being separate from God you have nothing and are nothing. You can't exist without him. So the ONLY solution to the ONLY problem is to rejoin with God. That is the ONLY thing you can do to make a difference. Either you are being separate from God, which produces all problems and suffering and death, OR you are one with God and share HIS eternal life.
One problem, one solution. Staying separate from God and trying to utilize your special separate exclusive lack of power to solve problems and heal the world will not work. The problem is separation. ONLY undoing the separation will help. The ONLY way to do that is to resurrect and become whole again, to become one with God again, which means being HOST to God again - letting God into you to take up residence within again.
It's kind of like being a medium for God, a channel through which God expresses. Only in this way can you share his love and power and use his power to work miracles. And only his power is capable of doing this. Without his power you have no power to do anything. But with his power there is nothing your SHARED holiness cannot do.