A Profound Mystery is not a song.  Tried You Tube and found one video on the subject .  However, not worth your while to click on it.  No dictionary even defines Profound Myster y, but that is because it only does this for an individual word.  Appropriately enough, as this is Sunday, most of the reference to this term comes from religious sources. God is a Profound Mystery.  So is the Big Bang.  Experts dally around the term, but no one can pin down the reality or unreality. Similarly, I don't know why my favorite song is  Wakare No Isochidori .    It is distinctly possible that of the 7.6 billion people living on Planet Earth, I am the only person who has it as #1.  WNI is the only song that was written and first popular in Hawaii, then gained some fame in Japan.  When?  Not sure, but probably in the 1930's.   Here is a quote from a posting of a decade ago , when I traveled from Sapporo to Wakkanai, the northern mo...