If the whole purpose of our existence is just to get saved, then why doesn't the Lord just take us Home to Heaven the minute we get saved?--Because we have a job to do, and it's a big one! There are a lot of other people who need to know Jesus. What then, is the greatest work, the most important job in the World?--To witness the Words of God, to preach the Gospel, to tell others about God's Love, to show them the Love of Jesus!--That's what we're here for, to witness and win souls. His great commission to us is, "Go ye into all the World and preach the Gospel to every creature!" (Mk.16:15) Preaching the Gospel and winning others to the Lord is our most important job.
Nothing is more important to the Lord than immortal souls, so we should never let anything take the place of our concern for their eternal welfare. Souls are so precious, and they're so very delicate, tender and priceless. Lord help us to be very careful, tender and loving with them.
The only thing God gives you down here that you can have in Heaven are the souls that you win to the Lord to be your brothers and sisters forever! They'll be thankful to you for all Eternity that you told them about Jesus and His Love!