The Kingdom of God is the Kingdom of Love.

                                     The Kingdom of God is the Kingdom of Love.

It exists in heaven and has not fully evolved on earth to the extent that hate and disbelief are conquerered.
That is why the Bible tells us, or more specifically Jesus in the Gospel that “the kingdom of God is within you.”
That is our job. that is our role, as members of the body of Christ. to live by this Kingdom and bring it to fruition in our own lives and thus let it spread further and further afield until the whole earth becomes the kingdom of God.        
We are invited by Christ to do this in the Gospel and in the Our Father we ask Gods help to achieve it.  When we embark on this journey  we are given the Holy Spirit  by whom and in whom we continue.       
Its not rocket science but it is difficult to let go of the things of this world that get in the way. This difficulty is the cross we must take up daily to overcome the world and our failures in it and those of others we come in contact with.   Repentance and forgiveness are the cure for failure.
Try it, you’ll like it.
The alternative is eternal hellfire.     
You wont like that, but you’ll have to bear it forever if you do not.