 Essentialists make a claim about mystical experiences, not doctrines. The term “perennial philosophy” has been a matter of doctrines since Leibniz. In the twentieth century, philosophers dubbed “perennial philosophers” or “perennialists” claimed that there are universal mystical doctrines about what is allegedly experienced that transcend all cultures and religions — a common core of esoteric doctrines that are expressed differently in different religions and cultures (Huxley 1945; Schuon 1975; Smith 1976 and 1987). That is, perennialists argued for a universalism of “esoteric” mystical doctrines lying beneath the “exoteric” expressions of each salvific religion, not of mystical experiences. Scholars today who are labelled the “new perennialists” such as Kenneth Rose (2016) and Steve Taylor (2017) are more properly labelled “essentialists.” (Constructivists unnecessarily confuse philosophical issues by mislabeling essentialism as perennialism [see Jones 2020].)