I found these two articles today on the net written by Gene Matlock that I think will definitely fit in this converstaion, Both articles have to do with the theory that the beginnings of civilization actually came from India and brought along alot of their philosphopy and teachings to the world including the Jewish and Moslem religions especially in regards to Abraham and Ishmael. Fascinating pieces of work I must say..It has been speculated that jesus at one time made a trip to India, and after reading these two papers I think it may bear some consideration.
I personally think the Holy Grail is not a physical object, but one of enlightenment. The Holy Grail in it's simpler terms would be considered the The Truth, as the old saying goes Ye shall know the truth and the truth will set you free, that I feel is the power of the grail.It is the quest itself and not the completion of the quest that bear fruit.
Just a few thoughts,