John 3:3
Jesus answered and said unto him, Verily, verily, I say unto thee, Except a man be born again, he cannot see the Kingdom of God...
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If you don't know what the two kingdoms are and how they function, and what your purpose is in the kingdom, then you are your living a life that is being destroyed and without purpose in the earth realm.
The word Kingdom according to Vines Expository Dictionary is primarily an abstract noun, denoting sovereignty, royal power, dominion.
Each human being born is in a kingdom and whether you know it or not, you have rights in a kingdom. The kingdom has a King or Ruler who rules and each person in the kingdom represents the the ruler of that kingdom and not himself or herself.
It's about Territory listed below are words related to kingdom:
Realm
Domain
Dominion
Country
Empire
Principality
Duchy
Land
Nation
State
Province
Territory