The Law of Undulation, an idea presented by C.S. Lewis
in his book The Screwtape Letters
"Their nearest approach to constancy, therefore, is undulation
- the repeated return to a level from which they repeatedly fall back."
He argues that humans are constantly going through many different cycles
. These cycles exist in our relationships
, our interests, and our efficiency at work
In addition, these cycles are experienced in one's relationship with God
From personal experience this has shown to hold great wisdom
, for it explains why when humans want to grow closer to God in their relationship with Him, they repeatedly fall back. This is due to our sinful nature
: While we desire to do His will, we cannot. Paul
describes this perfectly in Romans 7:15
"I do not understand what I do. For what I want to do I do not do, but what I hate I do.
This causes much frustration
in the Christian walk, because although we have the desire to grow closer to God, we are doomed
to repeatedly fall back from Him.