I think this is eluding to the fact that God gave us the world and it is up to everyone of us to build up his kingdom by bringing more people to Christ and not just worrying about ourselves but lending a hand to our neighbor.
Also it says that since God has been merciful to us by giving us talents we should show mercy to others and preach the word and make disciples of all nations. Because God has blessed us all with different capabilities in order to Glorify God and he expects us to use all he has given us to build his kingdom. If Christ lives through us we are supposed to be the light of the world. On judgement day our Father will ask what we have done to glorify his name, what we have done with the talents and the time God has given us. And what will our answers be ?????????????????