Vastu / Feng Shui Crystal Pyramid For Positive Energy And Vastu Correction. Good Luck & Prosperity. The Crystal Pyramid can be used for wish fulfillment and can be placed in the South West of your Homes and offices. It can also be used in Vastu and should be placed in South East for positive energy. Glass Crystal Pyramid can be used as Wish Pyramid and for Vastu and Feng Shui It works as a prism and can be placed on window sill for attracting positive chi in your home, shops and offices. Whether used in Vastu Shastra or Feng Shui practices, its presence is believed to bring positive benefits to both the space and its occupants.