A Yantra is essentially a diagram representing a Mantra or Chant which is used to achieve a specific objective. An Energized Yantra acts like a Machine to amplify the power of the mantras. Thus Yantras can be classified according to objectives.

Yantras are created from various materials ranging from Copper, Silver, Gold, Bhojpatra (paper) and are even available in Three Dimensional form. They contain various geometrical symbols and patterns like Squares, Triangles and circles representing various mantras.