The key for a doctor to be effective in treating a patient lies in whether the doctor knows the cause of the illness so that he or she can prescribe the right treatment. By the same token, the root of our samsaric existence and not being free is not a coincidence or without cause and condition. It is certainly not ruled by the Omnipotent but by attachment.
For example, when we feel strong attachment to a person, his or her every move can make us either happy or sad. During this time, the chances of getting hurt far exceeds that of gaining happiness because once there is attachment, expectation will ensue. If the other party cannot do as wished, it simply adds more unhappy moments to one’s life. This will continue until the relationship is broken and the attachment gone. Conversely, the less we care about certain things, the more likely they can give us a sense of happiness. This is life’s unbreakable natural law.
~ Depicted from "THE HANDBOOK FOR LIFE"S JOURNEY : On The Three Poisons - How to Refute Ignorance