After some time we will find that when watching and perceiving, all shades and nuances of thought pass through our mind. With practice, this process will become automatic, natural and effortless, even while we are engaged in our daily activities. An action performed with mindfulness will be a skillful action. The result, or vipaka , of such action will be pleasant and good. So constantly our mind will be suffused with satisfaction, joy and bliss.
Aggression is another vice that is responsible for much human suffering, errors and atrocities.
Its antidote is compassion or karuna. Jealousy poisons one's system. It has a corroding effect on a person like rust on metal. It will destroy a person. Appreciative joy or mudita is the remedy.