You don't know. You never will know. You will not know how everything came to be. Therefore you know nothing truly. Ignorance should be based on this understanding, otherwise you have understanding based on ignorance. Knowledge is good, but it has limits, it is only one dimensional. Life demands more than knowing, it needs constant feeling and energy from your part. To live happily, you need your body to be lithe, supple, and full of energy. Your mind to be resolute, clear, without doubt. Your heart, as difficult as it is should be filled with compassion for everyone. But how do you do this? Through action. You see a fool reacts, a reaction is a fleeting of all control, control of yourself. However the courageous person will act, action should coexist with everything you do. Even inaction is the action of not doing, be sure do do something. Whatever happens, you will be forced to take responsibility, or at least make you realize to a greater degree that it always was.
That's my two cents. Watch how your life improves. Experiment. If you believe this to be false, toward a happier life than please just try doing this for one hour. One minute. Or not at all. You are responsible for yourself.