Dear Sister,
I was not implying that he was of the Hindu religion. I was trying to show you where meditating with a mantra came from. Since I am not privy to the email, I can not truly understand what his instructions were, nor can I know what form of meditation you used and what the "mantra" was.
As I mentioned above, we are to meditate on Him, whether it be His words or what He has done in the lives of someone. Scripture tells us what to meditate on.
Philippians 4:8-9
Finally, brethren, whatever things are true, whatever things are noble, whatever things are just, whatever things are pure, whatever things are lovely, whatever things are of good report, if there is any virtue and if there is anything praiseworthy