With our thoughts we make the world. One is not a victim of the world one sees because he or she invented it. Mindfulness is the cultivation of compassion in our very thoughts, and even below the level of thinking. If we witness our thinking we see how flighty and ephemeral thought and emotion are. The reality of our being is love.
Love is the constant.
As we become aware of the flightiness of human thinking we can develop compassion for ourselves and others. As we become aware of the effects our thoughts have on the world, we can resolve to become more conscious, more aware, more loving. If we do our work mindfully we are in the moment, truly present to the task at hand. Not worrying about the future or the past. Meditation practice is what Buddha called Right Concentration.