Eph 2: 4-7 But God, who is rich in mercy, because of His great love with which He loved us, 5 even when we were dead in trespasses, made us alive together with Christ (by grace you have been saved), 6 and raised us up together, and made us sit together in the heavenly places in Christ Jesus, 7 that in the ages to come He might show the exceeding riches of His grace in His kindness toward us in Christ Jesus.
When we are born again God made us to sit together in the heavenly places in Christ Jesus. What is the meaning of it? The meaning is that God imparted in us the heavenly attributes in Christ Jesus, so that we can live the life of holiness, fellowship and obedience with God even when we are living in this earthly life. Why He is imparting these characteristics? It is to have a perfect harmony with God which is pleasing in His sight. This is how we are made when we are born again. Not to be a citizen of this world, but to be a citizen of the kingdom of God and to execute His kingdom works.