Contradictions (and, arguably, the acceptance thereof) pervade Buddhist  Philosophy. What is the point of those contradictions? In this talk, I  shall argue that contradictions are an important soteriological  instrument (upāya) for the practitioner. The enigmatic catuṣkoṭi, a  statement to the effect that every proposition holds, does not hold,  both holds and does not holds, and neither holds nor does not hold, is  noteworthy in this context. In Western research, the catuṣkoṭi has been responsible for plenty furore. Recently, Graham Priest (2010, 2018) has put forward an interpretation of the catuṣkoṭi in non-classical logic. With resource to this technical apparatus, we can uncover the family resemblance of the Kōan practice of the Zen tradition with the catuṣkoṭi. The Kōan, as I shall argue, may be considered an abbreviated catuṣkoṭi. It is generally accepted that the Kōan is  a soteriological instrument on the journey towards enlightenment  (satori). Thus, given their resemblance, I argue by induction that the catuṣkoṭi is more than a purely logical instrument, applied to refute philosophical enemies – it, too, has soteriological importance.