The North Devi and Devta Vastu Yantra service is a high-level "Directional Rectification" therapy. In Vastu Purusha Mandala, the North is governed by Lord Kuber (the Treasurer of the Gods) and the element of Water. However, the "Devi and Devta" aspect of this therapy refers to the specific 45 energy fields (Deities) that reside within the grid of your home.