When Lord Horatio Nelson was fighting the Battle of Copenhagen, his senior officer Sir Hyde Parker, also known as "Old Vinegar," hoisted the flag signaling retreat. Nelson deliberately put his blind eye to the telescope and said, "I don't see it."
If Nelson had obeyed the order to retreat and fled from his enemy, he never would have won the battle and captured 12 Danish ships! (Kent Crockett, I Once Was Blind but Now I Squint, Chattanooga, TN: AMG Publishers, 2004, p. 139)
Keeping the right perspective is also a battle. When we're going through a difficult time, we're tempted to quit our jobs, quit our marriages, quit trusting, and quit praying. But we can't surrender to discouragement. If we lose heart, we'll lose the battle.
When the enemy hoists the retreat flag, we need to put our blind eye to the telescope and our good eye on God. Hang in there. Don't give up. "For consider Him who endured such hostility by sinners against Himself, so that you may not grow weary or lose heart" (Heb. 12:3).
Keep looking up!