Saturn ( Shani ) symbolizes lower back portion of body. This Yantra on Bhoj patra is an auspicious yantra for Aquarius - Kumbha Zodiac or Rashi people. It can also be used to appease the planet Saturn ( Shani ). Weak Saturn in Birth chart leads to problems related to weakness, stomachache, fits and weak bones. The Saturn Yantra helps in eliminating the problems raised by weak Saturn in Birth charts.