External appearances appear to the mind, but they are just a construction of the mind; when they appear, the mind gives them a label. For that reason, even if outside things seem good, there is not actually a whole lot to be attached to. If they seem bad, there is nothing to feel aversion toward. Therefore if we want to be free of suffering and faults and find happiness and good qualities, the most important thing is to tame our mind and to be diligent about doing so. This is why we meditate and this is why there are mind instructions. Since the mind is root of everything and everything comes down to the mind, there is nothing more important than taming our mind, meditating on samadhi, and resting in equipoise. ~ Thrangu Rinpoche