Acharya Prashant explains that the moment an individual becomes ready to improve themselves, hope for the world's improvement naturally arises. He asserts that those who claim the world or others cannot change are essentially reflecting their own stagnation. A person who begins the process of self-purification experiences a state of innocence and purity that they instinctively wish to share with everyone, leading to a sense of hope and eventually faith. He clarifies that the feeling of being pure while others remain impure becomes unbearable for a transformed person, sparking an immediate sense of possibility for all.