Yantra is referred to as ‘Mandalas’, they are geometrical figures, diagrams or symbols that are characterized by singular forms representing their matching deities and mantras. Yantra in Sanskrit means “machine”, or “instrument”, also “support” or “aid”, correlating to their function as instruments for achieving our spiritual and material objectives. Indeed, the literal meaning of Yantra is: “to control, curb, bind or influence”. Yantra is the physical form of a Mantra and hence it awakens the energy of the deity associated to its mantra when placed anywhere in the environment around. These Vedic diagrams have stronger astronomical esthetics and are the ultimate reality. They can be inscribed in 3 dimensional forms on a plain surface or used as an amulet or charm. Adi Sankaracharya’s Saundarya Lahiri has done a prominent work on the importance of Yantra.
There are different types of Yantra made for different purposes. Yantric geometries are three dimensional in their original states but they are characterized as two dimensional when etched or drawn. Vedic literature based on the occult sciences mention different types of Yantra such as Planetary Yantra, Numerological Yantra, Yantra for different Gods and Goddesses and others. Yantra represent a Physical force or a creative energy. This energy is said to cleanse the environment and electrify the atmosphere with positivity.
Yantras are used in the worship of deities at temples and at home, as well as a tool for meditation. Specific yantras are historically connected with specific deities and/or specific sorts of energies employed for the completion of specific material or spiritual tasks and vows. It becomes a primary instrument in various sadhanas done by the spiritual seeker. Yantras hold a prominent importance in Hinduism, Jainism, and Buddhism.