The power of Yantras induces ‘Resonance’, it is based on the specific form of appearance. Such a diagram can be composed from one or more geometrical shapes which combine into a precise model representing & transfiguring essence, at the level of the physical universe. By ‘Resonance’, certain energy from the practitioner’s Microcosm vibrates on the same wavelength with the corresponding infinite energy present in the Macrocosm energy which is represented in the physical plane by the Yantra.

The principle of ‘Resonance’ with any deity, cosmic power, aspect, phenomenon or energy owes its universal applicability to the perfect correspondence existing between the human being (seen as a true Microcosm) & the Creation as a whole (Macrocosm).

Every Yantra is delimited from the exterior by a line or a group of lines forming its perimeter. These marginal lines have the function to maintain, contain and prevent the loss of the magical forces represented by the core structure of the Yantra, usually the central dot. They also have the function to increase its magical & subtle force. The core of the Yantra is composed of one or several simple geometrical shapes: dots, lines, triangles, squares, circles & lotuses representing the subtle energies in different ways.

The dot (Bindu) signifies the focalized energy & its intense concentration. The dot is usually surrounded by different surfaces, either a triangle, a hexagon, a circle etc. These forms depend on the characteristic of the deity or aspect represented by the Yantra. In the tantric iconography, the dot is named Bindu; in tantra Bindu is symbolically considered to be Shiva himself, the source of the whole creation.

The Triangle (Trikona) is the symbol of Shakti, the feminine energy or aspect of creation. The Triangle pointing down represents the Yoni, the feminine sexual organ and the symbol of the supreme source of the Universe. When the triangle is pointing upwards it signifies intense spiritual aspiration, the sublimation of one’s nature into the most subtle planes and the element of fire (Agni Tattva). The fire is always oriented upwards, thus the correlation with the upward triangle – Shiva Kona.

On the other hand, the downward pointing triangle signifies the element of water which always tends to flow and occupy the lowest possible position. This triangle is known as ‘Shakti Kona’

A typical combination often found in the graphical structure of a Yantra is the superposition of two triangles, one pointing upwards and the other downwards, forming a star with six points (Shatkona). This form symbolically represents the union of Purusha and Prakriti or Shiva-Shakti, without which there could be no Creation.

In the series of the five fundamental elements it represents air (Vayu Tattva). Another geometrical shape often used in Yantra is the circle, representing the rotation, a movement closely linked to the shape of spiral which is fundamental in the Macrocosmic evolution. At the same time, the circle represents perfection and blissful creative void.

The square is usually the exterior limit of the Yantra and symbolically, it represents the element earth (Prithvi Tattva).

Every Yantra starts from the center, often marked by a central dot (Bindu) and ends with the outer square. This represents the sense of universal evolution, starting from the subtle and ending with the course, starting from “ether” and ending with “earth”. Even though most of the times Yantras are composed of these simple geometrical shapes, sometimes we encounter other elements such as arrow points, tridents, swords, spikes included in the design of a Yantra with the purpose of representing vectors and directions of action for the Yantra energies.