The Sri Yantra is a very precisely constructed design based on the Golden Ratio, a constant equation observed in all of creation. It incorporates triangles that follow the rules of the Golden Ratio, often known as the Golden Triangles. The Sri Yantra can be divided into nine Mandalas. Trailokya Mohana or Bhupara (That which attracts the Universe) Five of the nine triangles point downwards and represent Shakti, the feminine power. The remaining four represent Shiva, the masculine, and point upwards. Aside from the extremely complex geometric properties, the Sri Yantra is interpreted to have a very deep, detailed cosmological interpretation. It is been observed to have a number of properties responsible for psycho physiological influences which are widely used in modern therapeutic suggestive methods. The Sri Yantra also looks strikingly similar to the Star of David or a star tetrahedron. Check out the image below:
Form Visualised in 3D
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Original Form of Sri Yatra