There are 4 kingdoms on earth:mineral,vegetable,animal and human.
The 5th kingdom,"the kingdom of heaven or god",is our goal.
This is the cornerstone of every religion.
After that,there are 7 kingdoms of gods.
And,if you want to know,then comes the real nirvana.

Maybe I have said too much.
I´m a student and will remain a student.
FDR,WC,DH were no students-they were servers of the world.