on dreams-第4章

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dream。　Nor　should　the　true　thoughts；　as　distinct　from　the　mere



presentations；　which　occur　in　sleep　＇be　called　dreams＇。　The　dream



proper　is　a　presentation　based　on　the　movement　of　sense　impressions；



when　such　presentation　occurs　during　sleep；　taking　sleep　in　the　strict



sense　of　the　term。



　　There　are　cases　of　persons　who　in　their　whole　lives　have　never　had　a



dream；　while　others　dream　when　considerably　advanced　in　years；



having　never　dreamed　before。　The　cause　of　their　not　having　dreams



appears　somewhat　like　that　which　operates　in　the　case　of　infants；　and



＇that　which　operates＇　immediately　after　meals。　It　is　intelligible



enough　that　no　dream…presentation　should　occur　to　persons　whose



natural　constitution　is　such　that　in　them　copious　evaporation　is　borne



upwards；　which；　when　borne　back　downwards；　causes　a　large　quantity　of



motion。　But　it　is　not　surprising　that；　as　age　advances；　a　dream　should



at　length　appear　to　them。　Indeed；　it　is　inevitable　that；　as　a　change



is　wrought　in　them　in　proportion　to　age　or　emotional　experience；　this



reversal　＇from　non…dreaming　to　dreaming＇　should　occur　also。



　　　　　　　　　　　　　　　　　　　　　　　　　　　　　THE　END



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