There is a wide difference between worrying about a possible future of trial and being ready for it if it should come. The former we should never be; the latter we should always seek to be. It is he who is always prepared for emergencies, for the hard pinches, the steep climbing, the sore struggle, that gets through life victoriously. In moral and spiritual things it is the same. It is the reserve that saves us in all final tests--the strength that lies behind what we need in ordinary experiences. Those who daily commune with God, breathing his life into their souls, become strong with that secret, hidden strength which preserves them from falling in the day of trial. They have a "vessel" from which to refill the lamp when its little cup of oil is exhausted.
Matthew 25:1-13: Then shall the kingdom of heaven be likened unto ten virgins, which took their lamps, and went forth to meet the bridegroom. And five of them were wise, and five were foolish. They that were foolish took their lamps, and took no oil with them: But the wise took oil in their vessels with their lamps. While the bridegroom tarried, they all slumbered and slept. And at midnight there was a cry made, Behold, the bridegroom cometh; go ye out to meet him. Then all those virgins arose, and trimmed their lamps. And the foolish said unto the wise, Give us of your oil; for our lamps are gone out. But the wise answered, saying, Not so; lest there be not enough for us and you: but go ye rather to them that sell, and buy for yourselves. And while they went to buy, the bridegroom came; and they that were ready went in with him to the marriage: and the door was shut. Afterward came also the other virgins, saying, Lord, Lord, open to us. But he answered and said, Verily I say unto you, I know you not. Watch therefore, for ye know neither the day nor the hour wherein the Son of man cometh. (KJV)