Man has made two categories: One is a category of friends and loved ones and the second category is of others, outsiders, enemies. From time immemorial man is being fooled.
And he gets fooled more by his own people than by those he considers as not his own. Man continues to rely on the gross manifested world reposing no faith in subtle perceptions. The one who is good in the present is termed a friend and the one who is not good is termed an enemy. Though in actuality the one who says the sweet words of a friend may also do the harm of an enemy. Parents tell the son, do not take alcohol, keep a distance from intoxicants, do not get into bad habits and do not mix with an undesirable crowd. The son thinks his parents are his enemies. Instead the one who says let us go to the nightclub, drink and have fun seems to be a better friend. This is perversion of vision.