The people and things that are destined to be missed will be missed no matter what you do, just like fishing for the moon in the water, or seeing flowers in the mist; the people and things that are destined not to be missed will not be missed even if you do nothing, just like inserting a willow unintentionally, and the willow will form its own shadow. But people and things that are destined not to be missed will also be missed by doing nothing.