We humans are created in God’s image with a spiritual nature that longs for eternity, but at present, we live in a world of time and space. This world we live in is contantly changing. While our spirit longs for something better, the body of our humanity is caught in the continium of time. In this world, life can be like the waves on the Sea of Galilee, up and down, but within restricted banks. We long for consistency, for a level plain, but life is filled with changes and these changes create highs and lows. Solomon said it like this: there is a time for laughter and a time for crying, a time for dancing and a time for mourning. Laughter and dance come with the highs, crying and grief come with the lows.
These highs and lows come in every area of life. As long as we live on this earth we will have “Undulation” [highs and lows]. Satan is not responsible for the undulation. Do not give him undue credit. Keep in mind that some of God’s choice servants, including Job, suffered through long, low depressed times. God’s allows the troughs [low depressions] to transform us and to comform us into the likeness of His Son. Thus the devil’s work is to do the opposite. As he did with Eve, he tempts us to distrust God and thus become more like himself [Satan], rather than to become more like Christ.
God’s purpose is to reproduce His Son’s virtue in us. His purpose is not to absorb us into His Son or Himself, but to make us like His Son in character and will. Satan is like a lion in the sense that he wills to devour us whereas God has no intention of devouring our personality. God simply wants us to love Him as an act of our own free will. He wants us to be one with Christ in likeness of character, but with distinct personalities. God has never intended that we be just like Christ: that would destroy His uniqueness and rob the Father of worshippers. Christ exists to be worshipped and we exist to worship–there is a huge difference.
In moving us from point A to point B, God refuses to use force. Yes, He has the power to override our will, but He chooses not to do so. He could manifest His full and visible presence, but that would overwhelm us. So God has chosen to relate to us by faith. As Screwtape said to Wormwood, “He does not ravish. He can only woo.” God’s visible presence would be so intimidating that our will would be lost in a fraction of a second. Remember that when Jesus sent His disciples into the storm, He remained distant for a certain time. He was testing their faith. A child never learns to walk until the parent lets go of their hand. As Screwtape said to Woodworm, “Our cause is never more in danger than when a human, no longer desiring, but still intending to do our Enemy’s [God’s] will, looks round upon a universe from which every trace of Him seems to have vanished, and ask why he has been forsaken, and yet obeys.”