In nature a person tries to survive. Even Jesus said, "'I came that they may have life, and have it more abundantly'" (Jn 10:10). Are you supposed to do anything necessary to survive? Jesus warns, "'Whoever wishes to save his life will lose it'" (Mt 16:25). There was a situation in Smyrna where Jesus instructed through John, "'You will have tribulation ten days. Be faithful until death, and I will give you the crown of life'" (Rev 2:10). This "momentary, light affliction is producing for us an eternal weight of glory far beyond all comparison" (2Co 4:17). It depends upon your perspective. "Things which are seen are temporal, but the things which are not seen are eternal" (2Co 4:18). "The one who sows to the Spirit will from the Spirit reap eternal life" (Gal 6:8). "We have a building from God, a house not made with hands, eternal in the heavens" (2Co 5:1). So our focus should be on eternal things.
The "free gift of God is eternal life in Christ Jesus our Lord" (Ro 6:23). "This is the promise which He Himself made to us: eternal life" (1Jn 2:25). "God has given us eternal life, and this life is in His Son" (5:11). "'This is eternal life, that they may know You, the only true God, and Jesus Christ whom You have sent'" (Jn 17:3). Christ "died for sins once for all" (1Pe 3:18). "Having been made perfect, He became to all those who obey Him the source of eternal salvation" (Heb 5:9). Therefore "'he who believes in the Son has eternal life; but he who does not obey the Son will not see life'" (Jn 3:36). Jesus cautioned the Jews, "'You think that in [the Scriptures] you have eternal life . . . [but] you are unwilling to come to Me so that you may have life'" (5:39-40).