Does crystal really have an effect on feng shui?

If you believe it, you have it. No, you do. However, if you have spare money, you can use it. If there is no spare money, it is better to invest first to make money. Feng shui makes sense, but you can't believe it all. After all, people still have their own destiny. Although many books are about fortune telling, they are all said to be just a reference. Don't believe it completely. Whether it works or not depends on your own conditions. Crystal can be said to be helpful to popularity, and it is also related to what you want to do. See if you believe it or not. If you don't believe me, it's no use buying it. This is just a decoration.