Kata"m puñña-phala"m mayha"m
Sabbe bhaagii bhavantu te.
May all share in the blessings
springing from the good I have done.
Even though the mind is intangible, it has influence over the body & all things in the world. It is capable of bringing everything in the world under its control. Still, it isn't so vicious or savage as to lack all sense of good & evil. When a person of good intentions trains the mind to enter correctly into the path of the Buddha's teachings, it will be tractable & quick to learn, developing the wisdom to bring the body, which may be behaving without any principles, back into line. In addition, it can cleanse itself to be bright & clean, free from defilements, able to realize by itself truths that are subtle & profound, bringing dazzling light into this world so dark with blindness.This is because the true substance of the mind has been, from the very beginning, something bright & clear. But because of the preoccupations that have seeped into it and clouded it, the brightness of the mind has been temporarily darkened, making the world dark as well. If the mind were originally dark, there probably wouldn't be anyone able to cleanse it to the point where it could give rise to the light of discernment at all.
So whether the world is to be dark or bright, whether it is to experience well-being or suffering, depends on the mind of each individual. We as individuals should thus first train our own minds well, and then train the minds of others. The world will then be free from turmoil.
-- Phra Ajaan Thate Desara"nsii