Having the mind in the right state can help one deal with the unpredictability and struggles of the outside world. The mind is powerful. It effects how you see the world. The good, the bad, and the in between. You can’t enjoy the brightness of the world if your mind is in darkness. You will only see negativity in all circumstances. Mindfulness practice can allow the mind to stay at peace, and allow one to enjoy the wonderful times, and cope through the tough times. The mind, and inner being is key to a content and fulfilling life.
Psychology of Mindfulness 