Jessie Laidlay Weston, From Ritual to Romance — Chapter III (1921)
“ When every parallel to our Grail story is found within the circle of a well-defined, and carefully studied, sequence of belief and practice, when each and all form part of a well-recognized body of tradition the descent of which has been abundantly demonstrated, then I submit such parallels stand on a sound basis, and it is not unreasonable to conclude that the body of tradition containing them belongs to the same family and is to be interpreted on the same principles as the closely analogous rites and ceremonies. ”
