This document discusses how people experience fluctuations between periods of light and darkness in their consciousness, similar to natural fluctuations in nature. It advises being prepared for difficult periods by learning to sense when they are approaching so you do not unwisely commit to undertakings that you may regret when your consciousness becomes dark and obscured. Knowing when dark periods will recur helps avoid feeling weak, dejected, or without inspiration later on if you had started something important during that time.