In 2014, I published a proposal for a definition of “religion”. My goal was to offer a definition of this contentious term that would include Buddhism, Daoism, and other non-theistic forms of life widely considered religions in the contemporary world. That proposal suggested necessary and sufficient conditions for treating a form of life as a religious one. It was critiqued as too broad, however, on the grounds that it would include the study of math as a religion. How can one (...) include forms of life based on non-theistic realities without including math? In this paper, I show the flaw in the previous definition and the weaknesses of two attempts to evade that flaw, before recommending a shift, first, to a Wittgenstein-inspired polythetic definition of “religion” and, second, to a certain kind of polythetic definition that I call “anchored”. (shrink)