In face of the proofs which will be found in these pages I do not think any fair-minded critic will be inclined to dispute any longer the origin of the ‘Holy’ Grail; after all it is as august and ancient an origin as the most tenacious upholder of Its Christian character could desire.
But I should wish it clearly to be understood that the aim of these studies is, as indicated in the title, to determine the origin of the Grail, not to discuss the provenance and interrelation of the different versions. I do not believe this latter task can be satisfactorily achieved unless and until we are of one accord as to the character of the subject matter. When we have made up our minds as to what the Grail really was, and what it stood for, we shall be able to analyse the romances; to decide which of them contains more, which less, of the original matter, and to group them accordingly. On this point I believe that the table of descent, printed in Volume ii. of my Perceval studies is in the main correct, but there is still much analytical work to be done, in particular the establishment of the original form of the Perlesvaus is highly desirable. But apart from the primary object of these studies, and the results therein obtained, I would draw attention to the manner in which the evidence set forth in the chapters on the Mystery cults, and especially that on The Naassene Document, a text of extraordinary value from more than one point of view, supports and complements the researches of Sir J. G. Frazer. I am, of course, familiar with the attacks directed against the ‘Vegetation’ theory, the sarcasms of which it has been the object, and the criticisms of what is held in some quarters to be the exaggerated importance attached to these Nature cults. But in view of the use made of these cults as the medium of imparting high spiritual teaching, a use which, in face of the document above referred to, can no longer be ignored or evaded, are we not rather justified in asking if the true importance of the rites has as yet been recognized? Can we possibly exaggerate their value as a factor in the evolution of religious consciousness?
Such a development of his researches naturally lay outside the range of Sir J. G. Frazer’s work, but posterity will probably decide that, like many another patient and honest worker, he ’builded better than he knew.’