If Kuber is pleased and controlled than it bestows abundance of wealth to mankind. The king of Lanka, Ravana had controlled Kuber, which is why his country was called the country of Gold (Sone ki Lanka). Kuber Yantra can be placed both in residential and commercial places. It has to face North and requires regular worship for giving due rewards. The statues of Kuber even guard the building of the Reserve Bank of India in New Delhi.