The second purpose of those books was to show that there do seem to be forces, some of which are either rationalized by this magic or may be developed from it, which do not come within customary physics or within the experience of ordinary people.
Al doilea obiectiv al acestor cărți a fost acela de a arăta că par a exista niște forțe, unele fiind raționalizate prin magie sau se pot naște din ea, forțe care nu pot fi explicate prin legile fizicii sau prin experiența oamenilor obișnuiți.