The ionized stones remain activated and energized for good. You just hold them next to other stones for 30 seconds. Just ionize your food plate and cups in the same way, so you won't need to hold a stone next to your food. Placing a stone on the fuse box would restore EM balance throughout the house. Otherwise, attach one to the electic cable of the appliance. The water will be energized and balanced, but during the boiling (15-20 min) you increase the amount of negative ions, which doesn't happen with the use of the stones. Faith doesn't change the effect. A stone under the pillow helps balance layline and directional disturbances ,which are known to make sleep shallow.