Acharya Prashant explains that the moment an individual becomes ready to improve themselves, they immediately gain hope that the world can also improve. He suggests that those who claim the world or others cannot change are actually reflecting their own inability to change. When one experiences the taste of purity and innocence, they naturally desire to share it with everyone, leading to a sense of hope and eventually faith. Regarding the difficulty of practicing selfless action as taught in the Bhagavad Gita, he clarifies that selfless action is not a specific path but a negation of action driven by personal desire. He points out that people have spent their entire lives performing actions for the fulfillment of desires, which has only resulted in suffering and exhaustion.