This verse presents a negative chain of interdependencies that mirrors the positive chain of the preceding verses. It is structured as a sorites — a chain of logical consequences — that runs from the absence of self-control to the absence of happiness. 'Ayuktasya' means the undisciplined one — the person who has not yoked the senses and mind. Without this yoking, there is no buddhi (stable wisdom, clear discrimination). Without buddhi, there is no bhāvanā — deep meditation, sustained contemplation, or the capacity for focused inner work. Without bhāvanā, there can be no śānti (peace). And without śānti, Krishna asks rhetorically: 'kutaḥ sukham?' — where can happiness come from? This verse demolishes the illusion that happiness can be found through unrestrained sense indulgence. Happiness requires peace; peace requires contemplation; contemplation requires wisdom; wisdom requires self-discipline. There are no shortcuts. Every tradition reads this as a foundational statement about the architecture of well-being — and modern psychology, with its research on self-regulation, mindfulness, and the prerequisites of flourishing, confirms every link in this chain.