If the person in our world were awarded for good, altruistic deeds and punished for bad, egoistical ones, the good would be perceived as sweet and the evil as bitter, and the entire analysis would amount to the sensation of “sweet and bitter”. Everyone would avoid evil, egoistical actions and would only aspire to perform good, altruistic deeds, search for the Creator, feeling sweetness they feel today from egoistical pleasure; thus the achievement of perfection by all would be guaranteed.
All of our souls are parts of one, same soul, called “Adam”. This soul is the only one that was created by the Creator. According to His plan – the program of Creation – this soul has to distance itself from the Creator to such an extent as to sense all the bitterness, humiliation, vanity, imperfection and instability of this state. This is done in order to make it want to resemble the Creator, to return and to rise to Him.