A person’s sincerity would instantly be understood from the cordiality in his manners and language. One feels at ease and peaceful in the presence of a sincere person. The negativity of the insincere person would be felt instantly. Our Prophet (saas) was a very sincere person, people felt very at ease and safe in his presence. Hazrat Hamza came to him while he was fully armed yet he instantly found tranquility and peace when he saw our Prophet’s positive tone and electricity. - Harun Yahya