The so-called mother of the child isn't the child's begetter, but only a sort of nursing soil for the new-sown seed. The man, the one on top, is the true parent, while she, a stranger, foster's a stranger's sprout.
Human prosperity never rests but always craves more, till blown up with pride it totters and falls. From the opulent mansions pointed at by all passers-by none warns it away, none cries, 'Let no more riches enter!'.