Well, the Celts were Indo-Europeans and may have absorbed some Brahmin teachings as they passed though central Asia on their way to Europe and the Middle East. This could explain what the C's meant by:Mike Baillie's book The Celtic Gods Comets in irish Mythology covers many symbols that comes observers view of comets in sky with explanations. There is a quite a list of observations Mike Baillie wrote can also be found in the Hindu Mythology too. Trident is one of those symbol. Celts have their own priestly class Druids who followed strict oral tradition like Hindu priestly class Brahmins.
The main difference is Romans changed the practices related to Christianity in their territories of influence, In India, it remained as they are as the conflict between Brahmins and Buddhists are more or less won by Brahmins and some how survived during 1000 years of non-Hindu rulers.
Session 19 April 1997:
Q: Am I correct in my assessment that the origin of the Grail stories was the story of the Head of Bran?
A: But what was the "origin" of Brahna?
Q: Well, from the way I am interpreting what I have found, I have two possibilities: One is the Celts from Kantek, and two: a Nephilim hybrid [Abraham?].
A: Could be one and the same.
The Irish are Goidelic Celts or Milesian Gaels who were originally Scythians (Indo-Europeans) reaching Ireland via Northern Spain circa 600 BC. However, the Brigantes tribe may have been Brythonic or British Celts, who were not Gaelic speakers, and reached Britain by a different route from the Gaels and had somewhat different traditions. However, since the Celts did not record their history, it is hard to know what the origins of their religious beliefs and traditions were. No doubt there was a lot of cross fertilisation of ideas and beliefs on their long nomadic treks through Central Asia and Europe.