Chesterton says of the sane man: “His spiritual sight is stereoscopic, like his physical sight: he sees two different pictures at once and yet sees all the better for that.”
Christians see just that way – they see both sides. People are mortal, and immortal. There is great good AND great evil. The earth is beautiful, and it’s tragic. One’s loved family member can be loving AND hurtful. Life is enjoyable, and downright drudgery. Youth is great, as is old age; and both are temporary. We can be happy and sad at one and the same time.
We’d like to see and experience just the comfortable points, but there’s more to life than comfort and ease – there’s Jesus’ lordship to ponder. He is Lord over evil, too, and we need to see and experience that. We can’t be conquerors if our only battle is what we should watch and wear.