You know, I've rarely heard of or seen this interpretation before. But now that I think about it, it does make a lot of sense. Some people do think Jesus traveled in the time between his childhood and his Crucifixion. One belief is that he heard Gautama Buddha's teachings during that time. There could also be a strong argument made that he heard the teachings of early Hindus, and that that influenced his own teachings later.
There's nothing I have to add on the topic of the art itself, but I do recommend one thing. It's fine if you want to make the Cross suspended - it's your art, obviously - but it is somewhat odd. I would just recommend putting an explanation in the description as to why exactly you chose to make that choice. Great job!