The second law of thermodynamics states that closed systems tend to maximize entropy (measure of disorder).
Basically, if we are not working on one area of our lives it will eventually become disorganized, cluttered and scattered. So we re-double our efforts and swear we never let this fall between the cracks again. Then we see a different area of our lives begin to become disorganized. So we work hard to fix this area of concern, swear we will never let this slip through our hands again and the cycle continues.
We have learned to reverse the law of disorder we have to put energy into it. The problem is energy is finite. We do not have an infinite supply. The energy put into preventing disorder in one place simultaneously increases it somewhere else. Entropy will continue to grow and grow.
So what does that mean for us?
Focus on one area and another one will begin to be disorganized. That is okay. Over the years you want to be able to look back and have an overall balance but never let these particular seven areas slip into entropy; let them become your core principles.