This chapter shifts focus to a specific type of sadness: that arising from the presence of unwanted thoughts and desires in one's mind, particularly when engaged in daily, mundane activities. The Alter Rebbe asserts that such thoughts should not cause distress; rather, they are an opportunity for joy. By actively averting one's attention from these thoughts, an individual fulfills a significant command to not follow their negative impulses. This command is specifically relevant for average individuals, not for the completely righteous who have already eliminated such thoughts from their hearts. Refraining from indulging these thoughts is considered as meritorious as performing a positive good deed. Sadness over these thoughts can stem from an inflated self-perception, not recognizing that the ongoing struggle is precisely the unique task and spiritual measure of the average person. Every act of repelling a negative thought from the mind suppresses negative spiritual forces in this world and in higher realms, bringing immense joy to the Creator. This continuous battle, which may last a lifetime, is viewed as a person's ultimate purpose. The Creator receives two distinct types of "spiritual delicacies" or gratification: one from the complete transformation of evil by the righteous, and another, equally valued, from the subjugation of powerful negative forces by those who constantly strive against them. This ongoing effort turns potential negativity into a source of light and elevation. Beyond battling unwanted thoughts, similar divine pleasure is generated by sacrificing one's impulses even in permissible matters, such as delaying a meal for study or restraining unnecessary mundane speech or thoughts. Such self-sanctification, even in small measure, draws great spiritual assistance from above and fulfills a positive command, ultimately leading to true holiness.