Acharya Prashant explains that human consciousness regarding self-image is deeply rooted in physical survival and material security. Unlike animals, who lack such image-consciousness because they do not associate social standing with survival, humans maintain their image primarily to secure their livelihood. He points out that people are not actually thirsty for a good image itself, but for the 'bread' or material benefits it brings. For instance, an employee cares about their image before a current boss to ensure promotions and salary, but often disregards their image before a former boss because that relationship no longer impacts their financial security.