The Lotus (Padma)

The lotus 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. It can calm a person and focus the activities of the mind, and it also has a good effect on the health and psychic well being of a person. A yantra alone represents nothing. But it is through mental concentration and meditation that it becomes powerful.

The Triangle (TRIKONA) 

The triangle is the symbol of Shakti, the feminine energy or aspect of Creation. If the triangle is pointing down it represents the Yoni, the feminine sexual organ and is considered the supreme source of the Universe, on the other hand if it is pointing upwards it signifies intense spiritual aspiration, the sublimation of one's nature into the most subtle planes and the element of fire .The upward pointing triangle signifies the element fire which always tends to go upwards. It is also known as 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)

The two traingles one pointing upwards and other pointing downwards forms a star with six points. It is also known as David's Star. It thus represents the union of PURUSHA and PRAKRITI or SHIVA-SHAKTI, without which there could be no Creation.