1 , ▁became ▁an ▁influence ▁on ▁transaction al ▁analysis ▁by ▁the ▁late ▁ 1 9 6 0 s , ▁popular ised ▁by ▁Thomas ▁Harris ▁in ▁his ▁book , ▁I ' m ▁OK , ▁You ' re ▁OK . ▁ ▁Many ▁consider ▁Le ary ▁one ▁of ▁the ▁most ▁prominent ▁figures ▁during ▁the ▁counter c ulture ▁of ▁the ▁ 1 9 6 0 s , ▁and ▁since ▁those ▁times ▁has ▁remained ▁influ ential ▁on ▁pop ▁culture , ▁literature , ▁television , ▁film ▁and , ▁especially , ▁music . ▁ ▁Le ary ▁co ined ▁the ▁influ ential ▁term ▁reality ▁tunnel , ▁by ▁which ▁he ▁means ▁a ▁kind ▁of ▁representative ▁real ism . ▁The ▁theory ▁states ▁that , ▁with ▁a ▁sub cons cious ▁set ▁of ▁mental ▁filters ▁formed ▁from ▁their ▁belief s ▁and ▁experiences , ▁every ▁individual ▁interpre ts ▁the ▁same ▁world ▁differently , ▁hence ▁" Tr uth ▁is ▁in ▁the ▁eye ▁of ▁the ▁beh older ". ▁ ▁His ▁ideas ▁influenced ▁the ▁work ▁of ▁his ▁friend ▁Robert ▁Anton ▁Wilson . ▁This ▁influence ▁went ▁both ▁ways , ▁and ▁Le ary ▁admitted ly ▁took ▁just ▁as ▁much ▁from ▁Wilson . ▁Wilson ' s ▁book ▁Prom ethe us ▁R ising ▁was ▁an ▁in - depth , ▁highly ▁detailed ▁and ▁inclus ive ▁work ▁document ing ▁Le ary ' s ▁eight - circ uit ▁model ▁of ▁conscious ness . ▁Although ▁the ▁theory ▁origin ated ▁in ▁discuss ions ▁between ▁Le ary ▁and ▁a ▁H indu ▁holy ▁man ▁at ▁Mill bro ok , ▁Wilson ▁was ▁one ▁of ▁the ▁most ▁ar dent ▁pro ponents ▁of