Acharya Prashant addresses the common issue of losing motivation and failing to complete resolutions. He explains that most resolutions fail because they are driven by external influences, such as exam dates, New Year's traditions, or the opinions of others, rather than one's own understanding. When the external pressure or situation changes, the motivation vanishes. He emphasizes that a task can only be sustained continuously if it arises from one's own clarity and interest. He uses the example of a runner who runs for the joy of it versus one who runs only to lose weight; the former persists because the activity itself is the reward, while the latter stops once the goal is met or the burden becomes too much.