Shri Yantra or Shree Yantra is considered as the queen of all yantras that are present in Hindu Vedic Astrology

. Shri Yantra is the symbolic representation of mysterious mountain known as Mahameru, which is considered as the center of the entire Universe and guarded by eight mountains. Meaning of Shree is 'wealth; and Yantra is 'instrument' so Shree Yantra is the instrument of wealth.