If you find the Book of Revelation difficult to understand, then at this point just lay hold of this truth from its words.
There will no longer be any curse; and the throne of God and of the Lamb will be in it, and His bond-servants will serve Him; they will see His face, and His name will be on their foreheads. And there will no longer be any night; and they will not have need of the light of a lamp nor the light of the sun, because the Lord God will illumine them; and they will reign forever and ever. - Revelation 22:3-5
The Bible story after creation begins with the curse being put upon the earth because of the first sin of Adam and Eve. This is why life is such a struggle. This why sickness and death exist. This is the root of every single problem on this earth and no matter how much man tries to defeat sickness, addictions, abuse and every other ailment that drags us down, he will not.
But the good news is that if we live by faith in Jesus and what He suffered on the cross, then there is a day coming soon in which that curse will be gone.
This is what we need to receive out of Revelation. We don't need to speculate on and argue over what symbolic mysteries it presents. We need to lay hold of the promises the Word of God gives us and live in joyful expectation of the return of Jesus when all this comes to fruition.
There will no longer be any curse. There will no longer be any night. Darkness will be gone. We will not have need of the light of a lamp nor the light of the sun, because the Lord God will illumine them; and we will reign forever and ever.
That is what we most need to understand from the Book of Revelation.
