Crystals are powerful tools that we may use to help ourselves.
Amethyst is one of the first stones that may call you when you start working with the energy of crystals.
Crystals are ancients in each of them is contains the history of the planet.
They carry powerful vibrations within them. You may benefit from their powerful energies.
Use the crystals with joy and have them help with meditation or concentration, it is up to you.