To cultivate the mind is to use one's heart, rather than being consumed by worry or anxiety. When the mind is lost, there is suffering; when the mind is enlightened, there is freedom. A kind heart is heaven, and an evil heart is hell. If one's concepts are improper, they cannot pursue righteous work; if concepts are biased, their actions will also be erroneous. One should learn to remain steadfast amidst the trials of people and circumstances, and learn to maintain inner peace even amidst movement.