Acharya Prashant explains that modern etiquette is often superficial and fake, lacking the true sensitivity required to respect life. Real etiquette is not found in books but arises from deep sensitivity, which allows one to know when to maintain eye contact or when to lower one's gaze. Sensitivity means being aware of even the slightest occurrences, whereas insensitivity is like a dead limb that feels nothing. He notes that the mind often filters out subtle signals, but true sensitivity involves training the mind to recognize the importance of even the smallest vibrations and unspoken words.