Here are just a few thoughts of mine.
We only need His power of love and the rest will fall into its place. It is so simple the kingdom of God: First He makes us see it and later He lets us enter. Eventually, when we have entered the Kingdom of God, He teaches all of us so that we can stop teaching each other.
Do you think that description is way too easy, not doctrinal enough, or simply an offense? Since if it were true, all religious struggles and countless writings would run danger to get superfluous. I suggest if someone has really entered the Kingdom of God, he will surely never go back, neither into the wilderness, nor to Egypt. But he will live the life God lives through him – on earth. After having died to the old self, to our old Adam and Eve, we can live a completely new life, gospel life, resurrection life, however you might call it. This new life has nothing to do with the life we knew before although it subtly shone through at times. Yet one day God takes the veil away and we can see Him everywhere. The apostle Paul confirmed to have known this kind of life here:
For through the law I died to the law, so that I might live to God. I have been crucified with Christ. It is no longer I who live, but Christ who lives in me. And the life I now live in the flesh I live by faith in the Son of God, who loved me and gave himself for me. (Gal 2:19-20 ESV)
And here’s finally the Biblical confirmation for my statement above.
“Truly, truly, I say to you, unless one is born again he cannot see the kingdom of God.” Nicodemus said to him, “How can a man be born when he is old? Can he enter a second time into his mother’s womb and be born?” Jesus answered, “Truly, truly, I say to you, unless one is born of water and the Spirit, he cannot enter the kingdom of God. (Jn 3:3-5 ESV)