SRI YANTRA
Tantric practices such as the construction of and meditation on Sri Yantra help refine thoughts and feelings by stimulating peace, harmony and order within ourselves. Sri Yantra is a projection of the male and female energies intersecting in the cosmos to create the phenomenal world. Focus on the bindu or central point promotes union between the Aspirant and the Divine and frees the consciousness from its limitations. The bindu then represents the seed of entire universe which is beyond time and space; the end and the beginning from which all things are manifested. Sri Yantra works as a uniting force to link the mind with the abstract and to help achieve a higher state of awareness in which individual being and universal being are one.
 
Adapted from Sacred Geometry Oracle Deck, by Francene Hart (Inner Traditions, 2001).
From the Hindu tantric tradition comes the Sri Yantra, or “great object.” Sri Karunamayi (also known as one of the enlightened Ammas) has said that one needs nothing more than to meditate on this image to become enlightened. Its nine interlocking triangles form a powerful symbol for meditation. The proportions of the largest triangle are the same as each face on the Great Pyramid at Giza in Egypt. The dimensions of that pyramid conform to the divine proportion of the Phi ratio.
Use this Sri Yantra as an ordered space within which to find the peace you require.
The rings of lotus petals and the surrounding square with four doors represent boundaries within which consciousness resides. By your intention move into the symbol and experience time as a place of stillness in the eternal now.
Breathe deeply as you focus your attention on the simplicity of each triangle, moving from the largest to the smallest at the center and then from the smallest to the largest and back into your daily life. May peace surround you.
The meditation image of Sri Yantra looks like the picture above.
Sri Yantra Mandala - Has been used as Good Luck Sacred Geometry symbol in India , China and Tibet since many hundreds of years.

Power of Sri Yantra
There are negative energies around us - around all of us in greater or smaller magnitude - These negative energy stand in our way of achieving greater success , affluence , Harmony and Peace .
Many times we find that life is out of our control and we are Stagnating . inspite of our best efforts , hard work , intelligence and good intentions .
Sri Yantra Sacred Geometry - is considered to clear negative energies - the fog that surrounds our life - standing in our way of Peace , Prosperity and Harmony and make everything work for us in a Geometric precision.
In ancient India and China The Sri Yantra was used by Business class,aristocracy and the affluent . On seeing that this Geometrical symbol invariably brings in tremendous amount of Affluence , Abundance and Good luck this was termed as "Sri Yantra" - Sri meaning wealth and Yantra - Meaning "Instrument" - The Instrument for Wealth
Sri Yantra is considered to be dear to Goddess Laxmi the Hindu God of Wealth.
Presented at the Deepak Chopra, M.D. and David Simon, M.D.'s seminar, " The Seduction of Spirit". The Sri Yantra - or Yantra of Creation - is the most revered of all Hindu yantras. There is a mysterious beauty that arises in the way that 9 diverse triangles can inter link to form a state of perfect balance and harmony - creating 43 smaller triangles that comprise the Sri Yantra.
This very ancient symbol made an interesting appearance in modern times. It happened as a result of a series of experiments in the field of cymatics (the study of the interrelationship between energy and matter.) The sacred Hindu symbol "OM", when correctly intoned into the tonoscope (a devise that transforms sounds into their visual representations on a screen), produces a circle which is then filled in with concentric squares and triangles, finally producing, as the last traces of the 'M' disappear from the screen, the Sri Yantra.

Sound vibration of Sri Yantra
The sound vibration patterns which are generated by the many angles of the triangles of the SRI YANTRA were calculated by using the essential element of the circle around the triangular patterns, PI (3.1416) as the basic unit to which all the other ratios could relate. Therefore 3.1416 became a frequency vibration rate which, when doubled in value 6 times becomes 201.0624 cycles per second (or Hertz, ab. Hz) which is a sound tone equal on the international tuning scale of G+43 cents. Cents are divisions of micro tuning between notes on a piano keyboard. Each cent equals 1/100th division of sharp or flat between notes.