Everything is energy. Your thoughts, your belongings, your house etc. Research on the chinese 5 elements. Metal (it explains itself) Earth (rocks) Fire (candles and fire) Wood (life) Water (it explains itself) These elements apply very well to objects, especially energy emitting objects. Avoid "spiritual" objects of Metal element. Both Earth and Sky is important for our well being. Crystals Crystals are rocks, that some of them emit some kind of spiritual energy. Some can even be like brainwave altering. Going into another state of awareness or feeling and sometimes even health. Balance is key. Having too many crystals can be disturbing and unbalancing. So please buy carefully. You have to know what you buy. The name of the stone and if it seems good for you. Avoid red crystals. Red is the color of anger and frustration. Avoid blue crystals. Blue light makes the emotional down periods stronger. Expecially important for those with bi-polar disorder. Crystals combined with ot