Smokey Quartz is a great stone for grounding of one's energies. Protective against negative vibes it shields against electromagnetic smog. A great antidote for stress it allows one to enter a space where dealing with difficult times and difficult situations are met with quick resolve. Its this connection that is made with the Earth that allows one to align with its energies bringing both harmony and balance, it intils the state of being totally centered and in the body.
Disclaimer - Crystals are not to be used in place of traditional medical care provided by a medical practitioner.