▁where ▁ ▁it ▁continues ▁to ▁character ize ▁the ▁mode ▁of ▁function ing ▁of ▁that ▁part ▁of ▁the ▁ps y che . ▁ ▁The ▁un cons cious ▁with ▁its ▁primary ▁process ▁mode — al ong ▁with ▁its ▁repr essed ▁ide ational ▁content ▁from ▁early ▁child hood , ▁such ▁as ▁the ▁O ed ip us ▁complex — prov ides , ▁in ▁Fre ud ' s ▁theory , ▁the ▁driving ▁force ▁and ▁initial ▁input ▁to ▁dream s . ▁Fre ud ▁attributed ▁the ▁generation ▁of ▁a ▁more ▁or ▁less ▁coh er ent ▁dream ▁narr ative ▁to ▁the ▁process ▁of ▁" second ary ▁revision ," ▁which ▁might ▁( he ▁vac ill ated ▁on ▁this ▁issue ) ▁be ▁" a ▁contribution ▁on ▁the ▁part ▁of ▁w aking ▁thought ▁to ▁the ▁construction ▁of ▁dream s " ▁rather ▁than ▁part ▁of ▁the ▁" d ream ▁work " ▁proper . ▁The ▁dream - like ▁features ▁which ▁one ▁experiences ▁in ▁dream s , ▁such ▁as ▁cond ens ations , ▁disp lac ements ▁( symbol ism ), ▁and ▁revers als , ▁are ▁the ▁manifest ations ▁of ▁the ▁primary - process ▁input ▁to ▁the ▁dream ▁generation ▁process . ▁ ▁Yet ▁the ▁dream s ▁of ▁Fre ud ' s ▁own ▁and ▁those ▁of ▁his ▁patients , ▁which ▁he ▁provides ▁in ▁The ▁Inter pret ation ▁of ▁Dream s ▁and ▁elsewhere , ▁typically ▁ab ound ▁in ▁ver bal ▁dialog ue , ▁which ▁is ▁always ▁s ynt act ically ▁well - formed , ▁often ▁complex ▁( cont aining ▁sub ordinate ▁cla uses ) ▁and ▁usually , ▁though ▁not ▁always