A yantra is a mystical diagram that is the house in which a Devata (God or Goddess) dwells. Worship of planetary yantras is used to remove the ill effects of malefic planets and to increase the positive influences of favorable planets.
Brihaspati is the God of Jupiter and is one of the nine primary celestial beings in Hindu Vedic astrology who are the agents of the Law of Karma. The yantra shows Jupiter's symbol, the zodiac signs that Jupiter rules, and mantras associated with the ruling deity, Vamana Deva. Jupiter is the planet of luck, grace, favor and fortune. He gives wealth, abundance, prosperity, and success.