Like ourselves, crystals contain energy vibrations within them. Not only does each type of crystal contain energy within its own spectrum, but each individual crystal also contains its very own individual energy signal and aura. Magnify a crystal sufficiently and get down to the atomic level, what you will see are single atoms in motion, surrounded by a lot of space, which is pure energy.
If we are choosing a crystal and feel drawn to a particular one, this is because it is either in harmony with our own energy vibration or it possesses some essential qualities within its energy that will benefit us in some way, to raise our vibrations. Crystal healers work with this energy by feeling what an individual requires in terms of re-balancing or emotional healing; and choosing a crystal or crystals that will help that person to heal themselves. And now so can you!