Eight mukhi Rudraksha bead is a symbol of Lord Ganesha the son of Lord Shiva. Ganesha is Vighneshvara or Vighnaraja or 'Vighnaharta', the remover of Obstacles in the path of success. Ganesh symbolizes supreme devotion to Parents and connection with the Roots to achieve stability and strength to overcome all hurdles.
Eight mukhi rudraksha bestows wisdom on it's wearer and attracts support and stability in his life. The wearer becomes free from the fear of failure in any kind of undertakings in his life. It improves the ability to face challenges in life. The planet associated with Eight Mukhi is Ketu. Ketu is the celestial snake that causes obstacles in one's journey of life. Eight mukhi nullifies the negative effects of planet Ketu.