Surya Yantra should be established and worshipped when the planet Sun is malefic in the Birth Chart of a person. As per Ancient Vedic Texts, the Planet Sun is regarded as the king of all planets. In fact, Sun is not a planet but it is a star reason being it is self-illuminated. Earth and all the other planets revolve around the Sun. Sun manifests our Soul, Father, Power, Health, Fame, Government, Medicine, Gold, Bones, Fire as well as government jobs.