I've been doing crystal healing and energy work for over a decade and took a little magical crystal  onlise course for fun recently  I got a lot of crystal grid sets and pouches as a present for my birthday  which I am only now exploring  These are pre made sets for specific purposes  some are what I'd select some are completely different for  a given purpose than I'd have thought of . Some sets are  for purposes that had not occured to me.  Aboove I've put a tumbled rutilated  quartz I call Goldilocks