In whatever you do, if you leave a sense of incompleteness, then Creation cannot resent you, ghosts and spirits cannot harm you. If you insist on fulfillment in your work and perfection in achievement, you will become either inwardly deranged or outwardly unsettled.
Even if you do no work that is particularly lofty or far-reaching, if you can shed mundane feelings, that is a great achievement. Even if you do not strive much for progress in learning, if you can minimize the influence things have on you, you will soar into the realm of sages.
If you know that whatever is made inevitable breaks down, you needn't seek too hard for achievement. If you know that all living beings inevitably die, you needn't work too hard on health lore.