In a 2008 paper, Justin Barrett designed a conceptual scale to measure the level of counterintuitiveness of concepts, “Barrett’s counterintuitiveness coding and quantifying scheme”. According to Barrett, the higher a concept scores in this scale, the more counterintuitive it is. The scale is meant as an auxiliary tool for one of the mainstream theories in the cognitive science of religion, namely, the Minimal Counterintuitiveness Hypothesis. For a concept to be adherent, i.e., to survive across cultures and across time, it has (...) to score points in the counterintuitiveness scale, but it has to score low. Concepts that score too high or that don’t score at all are non-adherent. In this paper the case is made that at least some varieties of religious belief involve concepts that resist accurate measuring. The case study presented here features Spiritual Oneness, the belief that “all things are one”, frequently prompted by mystical experiences and frequently described as being very adherent. We purport that the failure of Barrett’s scale to allow for an examination of the concepts at stake in Spiritual Oneness is to be explained by the fact that the background assumptions about counterintuitiveness underpinning the scale are too narrow. (shrink)