The Himalayan Glow Zen garden, made from pure Himalayan Pink salt is a beautiful way to relax and refocus your mind and energy. This product comes with three larger crystal salt pieces that are intentionally there to promote added healing energy within your Zen garden. It is an all natural way to become more Mindful, balanced and attract positive energy through a tried and true remedy of salt therapy. The pure Himalayan Pink salt is showcased beautifully when lit, emitting a warm amber glow while also purifying the air. This can also give the added benefit of relief from breathing and skin conditions while detoxifying the surrounding air. The Himalayan Glow Zen garden is the ideal size for any home or office to allow healing at your convenience. is it OK for children> while it is safe and not hazardous, it is not recommended for play or child use. do I need to move the salt around to prevent it from melting> the Zen garden is designed so that the salt will not be exposed to enough heat to melt, however it is recommended as a calming action to rake and move salt as you wish.