riva: trap with a falling flat stone, for catching small animals
One (an animal) that cries is the one caught in a snare; the one caught under a stone trap believes the sky has fallen.
An animal caught in a snare could try and free itself, but one caught under a stone trap is completely incapacitated.
People who complain about difficulties have most likely not experienced the worst. Those who have borne the brunt are silent, having resigned themselves to their fate.