The very first lesson of the Primer of the spiritual text is Control of Speech. The speech is the armament of man; other animals have fleetness of foot, sharpness of claw, fang, horn, tusk, beak and talon. But man has sweetness of speech, which can disarm opposition and defeat all the designs of hatred. Sweetness makes you Pashupati (Divine); harshness makes you Pashu (bestial). Mere outward politeness or sweetness is hypocrisy; sincere speech must flow from real sweetness of heart, a heart full of love. (SSS Vol.29, p. 208)