Electrical, mechanical, magnetic, and optical devices for exploration and enhancement of the human bioelectric energy field and various other devices to improve learning, memory, concentration, spiritual development, and promote self-healing, namely, light and sound machines in the nature of audio playback units with lights, goggles, and headphones, pre-recorded compact discs and tapes in the field of spiritual enhancement and self-help, meditation and visualization tools, namely, pre-recorde...