▁adopted ▁a ▁complex ▁system ▁of ▁symbol ic ▁images ▁in ▁his ▁paint ings , ▁taken ▁from ▁the ▁Jewish ▁Myst ical ▁tradition ▁( K ab bal ah ), ▁from ▁the ▁Bible ▁and ▁from ▁a ▁tang ible ▁reality . ▁In ▁his ▁painting ▁" G ates ▁of ▁Light ", ▁for ▁example , ▁he ▁expressed ▁" the ▁inner ▁mystery ▁and ▁tim eless ness ▁of ▁the ▁landscape ." ▁His ▁work ▁see ks ▁to ▁im part ▁a ▁cos mic ▁dimension ▁to ▁the ▁present , ▁linking ▁it ▁to ▁anti qu ity ▁and ▁mystery . ▁The ▁same ▁approach ▁can ▁be ▁found ▁in ▁" At ▁the ▁G ates ▁of ▁Jerusalem " ▁( 1 9 6 7 ), ▁which ▁shows ▁the ▁attempt ▁to ▁" con vey ▁his ▁feelings ▁about ▁the ▁cos mic ▁significance ▁of ▁Israel ’ s ▁return ▁to ▁the ▁Old ▁City ▁of ▁Jerusalem ▁during ▁the ▁Six - Day ▁War ". ▁" B ird ▁near ▁a ▁yellow ▁wall " ▁( 1 9 5 0 ) ▁demonstr ates ▁his ▁simpl istic ▁invol vement ▁with ▁the ▁Hol oca ust , ▁a ▁subject ▁to ▁which ▁he ▁was ▁one ▁of ▁the ▁few ▁Isra eli ▁artists ▁to ▁dev ote ▁a ▁phase ▁of ▁his ▁work , ▁at ▁that ▁time . ▁ ▁As ▁a ▁teacher ▁and ▁director ▁of ▁the ▁" New ▁Bez ale l ", ▁Ar don ▁convey ed ▁his ▁sense ▁of ▁social ▁invol vement , ▁his ▁t endency ▁towards ▁Jewish ▁myst ic ism ▁and ▁local ▁myth ology , ▁and ▁the ▁combination ▁of ▁personal ▁national ▁symbols ▁with ▁reality - always ▁stress ing ▁master ful ▁technique . ▁P up ils ▁such ▁as