Jesus said, "He that saveth his life shall lose it, but he that loseth his life for My sake and the Gospel's, the same shall save it!" (Mk.8:35) "Seek ye first the Kingdom of God!" (Mat.6:33)--And what is His Kingdom? His Kingdom is souls! His Kingdom is missionary work! His Kingdom is reaching the lost with the Gospel! Jesus didn't commission us to save ourselves, He commissioned us and called us into His army to save others!
Do you want to save your life?--Then lose it for Jesus and the Gospel, preaching it to others! Live and die for Jesus, and He will take care of you! Obey Him and do His Will and get out to the mission field, serving the Lord and winning souls!--Or help those who are!
But the fastest way to lose your life is to try to save it! "O thou fool, this night shall thy soul be required of thee!" (Lk.12:20)--What a warning! You're going to be sorry if you suddenly have to face the Lord and you didn't do what He told you to do, to seek first the Kingdom!
So heed His call and take up the challenge and take up the cross and do your best to share His Love with others.