Human shall remain unattached from happy-sad and rise above the material world while facing favorable and adversity. The human who is even in favorable and adversity realize element of Divine.
Lack of affection with son, wife, house and wealth etc. Always internally mind remains even in favorable and adverse. (Bhagwat-Gita: 13/9)
The desire to derive happiness, security, favor, prestige and satisfaction from relation with mortal object and human etc., is called attachment with them. Ignorant human does not know that bonding with body and nature cause worry, sin and rebirth. The real happiness is from separation from relation (Bhagwat-Gita:6/23). Happiness derives from relation seem as nectar but actually affect is like poison (Bhagwat-Gita: 18/38). Awaken human visualize the poison form of affect with the relation with material world and therefore does not develop attachment.
The assumed social relationship with son, wife, home, wealth, land and animal etc., cause bonding. Human shall perform their responsibility with whom they have relations without any expectation, than they will not trap into bonding with material world.
The human mind internally shall maintain equality in favorable and adverse. Abnormality of joy and happiness shall not appear while receiving favorable object, human, situation, event etc., and control sad or hate while experiencing adverse object, human and situation etc. Human shall awaken and acknowledge that all materials of world is for well-being of world, therefore all material shall be dedicated only for that purpose not for pleasure of personal nerve-senses. Human shall remain unattached from happy-sad and rise above the material world while facing favorable and adversity. The human who is even in favorable and adversity realize element of Divine.