Yantras are used as a potent remedy in vedic astrology. A yantra is a synergistic and transcendental system and depicts both macrocosmic and microcosmic forces acting together in the form of control and liberation. It is a set of power diagrams, which are visual representations of magical intentions and ideas. It is a spiritual system of divine energy, which is in harmony with the larger universe and focused on the primordial center, aiming at the unity of self and cosmos. A yantra performs two types of functions – to ignite mental energy of a person and provide protection against all types of evil effects.