Of course, it is important to know the what (what stones to use), the how (as in what context), and the where (where to place the crystals on the body). Knowing and understanding crystals can truly transform your life.
I have met my fair share of non-believers. Some were just not quite ready, others…I would meet months or even years later and… A roofer and his boss couldn’t believe how sleeping with one crystal helped the roofer resolved his knee problem. An acupuncturist substituted needles with crystals on treating her own back problems. A construction worker stopped swearing in the morning because he wasn’t waking up with aches and pains all over his body anymore.
Crystals can also complement other modalities such as feng shui. Feng shui is the art of designing a space according to its energetic principles.