We see in everyday life that a person who has nothing the matter with him and is only weak physically, or whose life is not regular, is always susceptible to illness. Then we see that a person who ponders often upon inharmonious thoughts is very easily offended, it does not take long for him to get offended; a little thing here and there makes him feel irritated, because irritation is already there, it wants just a little touch to make it a deeper irritation.