YANTRA literally means "support" and "instrument". Yantra is a symbolic representation of aspects of divinity. It is an interlocking matrix of geometric figures, circles, triangles and floral patterns that form fractal patterns of elegance and beauty. Yantras function as revelatory symbols of cosmic truths; furthermore, they are said to represent a map of both the universe and an individuals mind, Chakras or consciousness. Its geometric design act as a highly efficient tool for contemplation, concentration and meditation. YANTRAS carry spiritual significance : there is
a specific meaning that pertains to higher levels of consciousness. The YANTRA is like a microcosmic picture of the MACROCOSM. It is a focusing point and an outer and inner doorway. The YANTRAS are often focused on a specific deity and so. by tuning into the different YANTRAS you can tap into certain deities or creative force centers in the universe.The most celebrated YANTRA in India is the Sri YANTRA, the YANTRA of Tripura Sundari. It is a symbol of the entire cosmos that serves to remind the practitioner of the nondifference between subject and object. When one focuses on a YANTRA, his mind is atomatically "tuned in" by RESONANCE into the specific form energy of that YANTRA. The process of RESONANCE is then maintained and amplified. The YANTRA acts only as a "tune in" mechanism or a doorway. The subtle energy does not come from the YANTRA itself, but from the MACROCOSM.

The Dot (BINDU)

For example the dot (BINDU) signifies the focalized energy and its intense concentration. It can be evnisaged as a kind of energy deposit which can in turn radiate energy under other forms. 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 Tiangle (TRIKONA)

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, and 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 flown and occupy the lowest possible position. This triangle is known as SHAKTI KONA.

The intersection of two geometric forms (lines, triangles, circles, etc.) represents forces that are even more intense than those generated by the simple forms. Such an interpenetration indicates a high level in the dynamic interaction of the correspondent energies. The empty spaces generated by such combinations are described as very efficient operational fields of the forces emanating from the centeral point of the YANTRA. That is why we can very often encounter representations of MANTRAS in such spaces. YANTRA and MANTRA are complementary aspects of SHIVA and their use together is much more efficient than the use of one alone

The Six Points Star (SHATKONA)

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), also known as David's Star. This form symbolically represents the union of PURUSHA and PRAKRITI or SHIVA-SHAKTI, without which there could be no Creation.

The Circle (CHAKRA)

Another simple geometrical shape often used in YANTRAS 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 the blissful creative void. In the series of the five fundamental elements it represents air (VAYU TATTVA).

The Square (BHUPURA)

Between the simple geometrical elemets that compose YANTRAS there is also the sqaure (BHUPURA). The square is usually the exterior limit of the YANTRA and symbolically, it represents the element earth (PRITHIVI 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 coarse, starting from "ether" and ending with "earth".
Even tough 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 YANTRIC energies.

The Lotus (PADMA)

The lotus symbol (or its petals) is both a symbol of purity and variety, every lotus petal representing a distinct aspect. The inclusion of a lotus in a YANTRA represents freedom from multiple interference with the exterior (purity) and expresses the absolute force of the Supreme Self.
In conclusion, a YANTRA is a very complex spiritual instrument in the tantric practice (SADHANA). It can calm and focus the activities of the mind, and by its positive auto-suggestion it has a benefic impact on the health and psychic well being of a person.
A YANTRA alone represents nothing. Only when it is awakened by mental concentration and meditation will the process of RESONANCE appear and the benefic macrocosmic energies will manifest themselves in the practitioner's MICROCOSM.

How to Use YANTRAS

The secret key to using YANTRAS in meditation is RESONANCE. The process of RESONANCE is established by mental focus on the image of the YANTRA. As long as the mind is tuned into the specific mood associated to that YANTRA, the energy flows, but when the RESONANCE is stopped, the energy disappears.

Instructions for YANTRA meditation :

hang the YANTRA on a wall facing North or East, placing the center of the YANTRA at the level of your eyes

adopt your favorite posture or, if you want, sit on a chair maintaining your spine straight

breath in through the nose and out through the mouth, but do not force at all, just let the breath flow normally

look into the center of the YANTRA, trying to blink as rarely as possible; you don't want to look at the particular details of the YANTRA, just keep your sight right in the center and observe the whole YANTRA at once

this exercise should last at least 15-30 minutes every day; the experience will be indescribable

in time, after at least seven days of YANTRA meditation you will be able to tap into the same yantric energy even without a YANTRA (at the beginning you may fix your sight on an exterior or imaginary point or evoke the YANTRA with your eyes closed)

do not forget to consecrate the fruits of this practice to God (karma yoga); you should not chase any objective when doing YANTRA meditation, just let it gradually guide you towards the sublime energies of the MACROCOSM

when executing this techniques it is recommended that we maintain a state of aspiration and intense longing for experiencing the beatific energies of the consciousness

in superior phases the YANTRA absorbs the practitioner's complete attention, and he can no longer tell if the YANTRA is within himself or if he is within the YANTRA; this is the state of nonduality.