“…Beyond this minimal level of existential universality, however, the scientific literature is in the dark about whether different cultures are comparable or incomparable in the moral functions of purification (e.g., guilt reduction; Zhong and Liljenquist, 2006 ) and the effective forms of purification (e.g., washing hands, rinsing mouth; Lee and Schwarz, 2010 ). Although there is a rapidly growing body of experimental evidence for the diverse consequences of physical cleansing on moral emotion, judgment, and behavior (e.g., Schnall et al, 2008 ; Liljenquist et al, 2010 ; Zhong et al, 2010 ; Helzer and Pizarro, 2011 ; Huang et al, 2011 ; Ritter and Preston, 2011 ; Cramwinckel et al, 2013a , b ; Xu et al, 2014 ), this work is completely silent on issues of universality, because all the data have come exclusively from Western samples. On the other side of the world, cleansing may have different (or the same) moral functions, and even the same moral consequences may result from different (or the same) effective forms of cleansing.…”