To activate a crystal ball, you must first cleanse it of any negative energy. This can be done by placing the crystal in salt water overnight or using sage to smudge away bad vibes. Once cleansed, hold the crystal ball in your hands and focus on your intention for its use. Visualize a white light surrounding the sphere and imagine it filling with power from within. Finally, say aloud an affirmation such as “I now activate this crystal ball for my highest good” before setting it down and beginning your reading session.