I've heard of crystal planters before. Some years ago, a friend Allex felt strongly guided to plant crystals in many countries. He knew deep inside that the spot where he buried the crystal would energise, and become part of a "crystal grid" to help Earth move up to the next vibration.
Another friend, Jon, was "told from above" he had to buy a crystal and catch a plane. He arrived at Heathrow with crystal in pocket, not knowing where to go, and felt he had to catch the next plane to Canada. In Canada, he wasn't sure what to do next, so he hired a car, and drove "aimlessly", or was "guided" into mountain wilderness. Eventually he stopped the car in snowy wilds, miles from civilisation, and felt guided to walk across difficult snowy terrain, until he felt guided to a specific spot. He buried the crystal, inwardly knowing he'd planted it in a spot that would be part of a grid, and help raise the frequency of the planet to the next level. He immediately returned to England.
One thing I've learned on the mystical path is to accept others' realities, no matter how weird, because maybe one day that could be my reality too!
So, maybe only 7 people were chosen to plant crystals in a grid to help raise our planet's frequency. Maybe I'm fortunate that, with billions of people on the planet, I know 3 of the 7 crystal planters. Maybe it's only the "morphic field" ( http://en.wikipedia.org/wiki/Morphic_field#Morphic_field ) where learned behaviours spread through a field to become others' realities too. Maybe crystal planters are tested by guides and angels, to check obedience in serving the Gods.
Maybe mysticism has many potentials. And maybe, my three friends have done a great service for Mankind.