Final answer:
The phrase in the quote hints at a person's challenge in sustaining 'change,' which aligns with the common difficulty of maintaining personal growth or new habits.
Step-by-step explanation:
The quote 'Dark clouds of remorse and despondency will reign during the last week in January, but by February 1st you will have become accustomed and resigned to your old habits' suggests a person's feelings when they are unable to sustain change. This interpretation is supported by the various excerpts provided, which explore themes of transformation, the struggle against oppressive conditions, and the challenge of maintaining personal growth or resolution. The overwhelming sentiment across these excerpts is that of the difficulty in sustaining a path that diverges from one’s habits or circumstances, hinting at the common human experience of reverting to old patterns after attempting change.