Acharya Prashant explains a method that is both the most purifying and the most difficult to remember and accept. He describes it as a strange but singular method, dismissing all others as mere humbug. The core of this method is to "always know how impure you are." He advises never to let the mind deceive you into a feeling of its own honesty or cleanliness, asserting that humans are born unclean, dishonest, and impure. The practical application of this method is to constantly ask oneself, "Am I in my personal world?" The speaker clarifies that any world one inhabits is bound to be a personal world. This question can be rephrased as, "Is something happening in my consciousness right now?" If the answer is yes, it means you are in a trap. He defines simplicity as having a still consciousness where nothing is happening. When the consciousness is still, everything that needs to happen, happens on its own. The speaker suggests that with practice, one should develop an "allergy" to certain words and phrases like "I felt," "I thought," or "This is the way I am." The moment these thoughts arise, they should be immediately rejected, triggering an inner resistance, much like the immediate reaction to hearing someone shout "fire" or "snake." These words should signify danger. This practice does not make one dead or insensitive to feelings. Instead, he uses an analogy where feelings are a vehicle carrying a pathogen. To stop the pathogen, one must stop the vehicle. Feelings, thoughts, and personal perceptions are the vehicles that carry "mischief-makers." By stopping these personal impulses, one stops the mischief. When feelings start to signify danger, what one feels begins to attain a certain purity. The feeling itself, or "bhav," can then become the purest thing in the world.