It symbolizes Atma Tatva and Agni (fire). Weak Sun in Birth chart leads to problems related to Eye, Stomach, and Heart and weak bones. The Surya Yantra help in eliminating the problems raised by weak sun in Birth chart.
Mantra: Om Hram Hrim Hraum Saha; Om Suryaya Namah.
This yantra is used to appease the planet Sun which stands for power and authority. When one is deprived of happiness through termination of service, suspension or through opponents or diseases etc., worship of Lord Sun through Surya Namashkar is advised. Difficulties can be overcome and cure from disease is attained with good health through pooja of this yantra. After pooja, this yantra can be kept on the body or worshipped in the home temple. Sun stands for power and authority. Surya Yantra enhances the peace of mind, gets favour from Superior, officers and Govt. The Surya yantra is worn in neck kept on the body or is worshipped in temple of your house. By the use of Surya Yantra enemies are suppressed and eliminated the malefic effects of Sun. When Sun is malefic in birth Chart of a native or according to the rashi based on his name the planet indicates malefic effects then the Surya Yantra is very useful. Surya Yantra shall be placed on any rising Moon Sunday.