Acharya Prashant explains that every saint has a past and every sinner has a future, emphasizing that it is natural for human beings, including great personalities, to have flaws. He points out that if Shri Ramakrishna Paramhansa were alive today and informed about the environmental impact of eating fish, he would have likely given it up due to his greatness. However, people often fixate on the flaws of great men, such as Swami Vivekananda's habit of eating meat, rather than focusing on their profound teachings. He asserts that as long as one resides in a human body, certain imperfections, biological traits, and cultural influences will remain. Acharya Prashant highlights that one should focus on the 'shlokas' or wisdom coming from a teacher rather than the 'bacteria' in their mouth. He shares a personal anecdote about eating canteen food instead of a specially prepared healthy meal to illustrate that lifestyle choices or dietary habits are not the primary lessons to be learned from a spiritual guide. He notes that Swami Vivekananda suffered from numerous ailments and died at a young age, suggesting that his diet is not what one should emulate. The core message is to seek the light of perfection even from an imperfect human form, just as one enjoys moonlight without being bothered by the spots on the moon. If one waits for a perfect person to learn from, one will never learn anything because physical existence itself implies imperfection.