Thanks for the explanation. I am not a native speaker, so I might be completely off, but to me it sounds like a thing which these aetherial mystical persons say just to sound more like "eastern philosophies".
especially for the dead, as in the phrase rest in peace.
doesn't sound really appropriate to me either. But don't worry, I just wanted to let you know how I perceive it, so you have the option to decide if you like it or not.
I think it's more of an American hippies thing.
"Peace bro."
You know? Don't think too hard about it, is my suggestion.