But there might be such a thing as a man’s soul being loose from his body, and going out and in, like a bird out of its nest and back; and that was how folks got overwise, for they went to school in this shell-less state to those who could teach them more than their neighbours could learn with their five senses and the parson. And where did Master Marner get his knowledge of herbs from—and charms too, if he liked to give them away?