Acharya Prashant explains that an individual's hope for the world's improvement is directly linked to their own willingness to change. When a person begins to reform themselves and experiences the taste of purity and innocence, they naturally desire to share that state with others, leading to a sense of hope and faith. Regarding social duties, he clarifies that worldly and social obligations are performed only as long as one maintains consciousness of the external world. As these external factors lose their significance, the necessity to fulfill such roles diminishes, eventually reaching zero. While one can achieve liberation from the social plane, natural physical needs like eating persist as long as the body exists.