It is about believing the gospel and accepting God's love. It is about letting God's love in us spill out on each other and on all those whom God brings into our lives. It is about sharing the wonderful truth of freedom from guilt and sin and death to all who will listen and believe the good news. In this world there are important people and unimportant people. In the kingdom of God there is no such thing as an unimportant person.
Every person is infinitely important.
We are all part of one another through the Holy Spirit. We are one in Christ, and what happens to one of us affects all of us. Every time you have reached out in love to another person, you have helped build and extend the kingdom of God. Even though the kingdom will not be here in its full glory until Jesus returns, he lives powerfully in his people now.