While your physical body is clearly anchored in THIS world, your true self is clearly anchored in ANOTHER world. Your soul, your holy self, is entirely LOCATED in God's Kingdom.
"The soul never leaves the sight of God."
The only transition you make is between being BODY (physical) identified, which is the same as believing "I am in the physical realm", or being spirit (soul) identified, which is the same as "I am in God's Kingdom now".
But you cannot think of yourself as a soul if you think of yourself as anchored at the physical level. If YOU are IN THIS WORLD, you cannot be in the Kingdom. Your body is here, but your SELF is not.
The course becomes more clear and obviously telling us this, if you notice how it asks us to BE the way that God created us.
We're not asked to merely stay entirely OUTSIDE of the Kingdom until the last second where we pass through the pearly gates. We're asked to APPROACH the Kingdom, while in a body, and to RELOCATE our mind INSIDE the Kingdom as far as possible, PRIOR to the final awakening.
"You are safe in God, dreaming of exile" tells you that you ARE IN GOD, and being in God is your safety. The course also tells you the Son of God cannot be happy anywhere in the world UNLESS he knows he is with God. To be WITH God is really to be located IN HEAVEN.
If you think of Heaven as a place beyond this world, which it is, or if you think in terms of "two levels" where Heaven is above and Earth is below, which is accurate, there is temptation to TRAP yourself in this world. You think your body is here, and therefore your self is here. This is body identification.
What we're asked to really do is to lift our mind/self up out of the body, identify with our spirit/soul which is not even in a body, shift our mind into the service of the soul, LOCATE ourselves in God, EXPERIENCE intimacy and love with God, return to ONENESS with Creation, and to do all this as far as possible WHILE we're still having a body.
It's easy to think of Heaven as on the other side of a dimensional division, or a boundary of separation, the gap, which holds heaven and earth apart. But this tempts us to believe we are not IN heaven UNTIL God takes the last step. This is inappropriate. In order to BECOME more loving, at peace, happy, joyful, powerful, under no laws but God's, returning to your true nature, etc you HAVE to start moving INTO heaven, into your spiritual identity, right from the start.
In fact, the only way to lift up OUT of false perception ("the world is false perception") is to move back towards God, re-enter the truth, position yourself IN the light, CENTER yourself in God, locate yourself IN heaven, be surrounded with divinity, and therefore be practically 100% aware of Heaven's presence, even if you are temporarily still in a body.
You are an immortal being, and you cannot die. But this does not mean you're going to be mortal UNTIL God takes you home. Instead, the course is asking you to RECLAIM YOUR IMMORTAL NATURE NOW, live out from that nature while you're here, demonstrate you are under God's laws only while you're here, BE the miraculousness of the soul HERE, and therefore heal the body and repurpose it into a symbol of eternal life.
He's asking us to return to our HEAVENLY NATURE, as fully as possible, in order to become "ready" to take that final 1% step to undo the last threads of the illusion of death and accept the atonement. The atonement is love and light, so to approach it you have to enter into the realm of love and light almost fully immersed. But you WILL NOT BE WILLING to accept the atonement without a HUGE amount of PREPARTION before hand, leading up to it. "Miracles are everyone's right, but purification is necessary first."
We cannot even be loving, in this world, unless we are willing to be closer to God while we're here. We can't be the light of the world unless our mind is plugged into spirit and we are literally radiating holiness and light into the world. We cannot perform miracles unless we're going to tap into the unlimited miraculous power of God WHILE we're here. To be miracle minded is to be aligned with and IN the mindset and thought system of heaven itself.
Perhaps we can frame it this way. The physical world is false perception, the lower battlefield of unconsciousness and death. ANY attempt to even START to awaken, to become more spiritual rather than unconscious, requires us to begin re-identifying with spirit. This is why Jesus says:
"Pain thresholds can be high, but they are not limitless. Eventually, everybody begins to recognize, however dimly, that there MUST be a better way. As this recognition is more firmly established, it becomes a perceptual turning-point. This ultimately reawakens the spiritual eye, simultaneously weakening the investment in physical sight."
In pain, we are in the darkness of making the world real and experiencing it as a living hell. If we want to be happier and so on, we're going to have to APPROACH THE LIGHT. This will entail shifting your sense of WHERE you are, from hell to heaven.
The journey begins as you emerge from the painful state and START to move towards God. And this means you are slightly releasing your identification with the body and physicality, and are beginning to open up a spiritual sight which is the eyes of Christ - and Christ is IN heaven.
So even if our body is here in this world, our mind/self/identity must go through a journey BACK to heaven, even from the beginning of the awakening process, such that we should be thinking of ourselves AS WE ARE IN HEAVEN, in order to live out from that truth.
We can't BE loving people if we are not coming FROM LOVE. Love IS GOD. And in this way we are bringing the laws and the love of ANOTHER world TO THIS WORLD. And in order to have a holier relationship with others, while here, we must start relating HOW WE RELATE IN HEAVEN. Holy Relationship mirrors heaven's relationships. Or in other words, we must relate here how we would treat each other IN GOD, as if we ARE in God right now.
We then shine the light of heaven THROUGH the body. We extend love from ANOTHER world through the body. We bring the Holy Spirit's healing TO the world. We atune to our IMMORTAL NATURE while still in a body, thus forcing the body to DEPICT a symbolic representation of eternal life WHILE HERE. You cannot do that if you think of yourself as IN or OF this world.
You must BRING another world TO this world. You must BE AS YOU ARE IN HEAVEN, while visiting hell. You then operate under MIRACULOUS laws, which break the laws of this world while you're here.
This is why it's important to start now to identify yourself AS your soul, to begin operating AS IMMORTAL, to extend God's love here, to shine Heaven's light into the darkness, and to be as close as possible to how God created you BEFORE you get to heaven.
"But the REAL world HAS the power to touch you even here, BECAUSE YOU LOVE IT. And what you call with love WILL come to you."
"The miracle, therefore, has a unique function, and is motivated by a unique Teacher, Who brings the laws of another world to this one."
"You cannot see the Holy Spirit, but you can see His manifestations. And unless you do, you will not realize He is there. Miracles are His witnesses, and speak for his Presence. What you cannot see becomes real to you only through the witnesses who speak for it. For you can be AWARE of what you cannot see, and it can become compellingly real to you, as its presence becomes manifest THROUGH you. Do His work, for you SHARE in His function. As your function in Heaven is creation, so your function on earth is healing. God shares His function with you in Heaven, and the Holy Spirit shares His with you on earth."