One mukhi rudraksha is the most auspicious in its existence. The one mukhi rudraksha is itself 'Lord Shiva' the almighty God. The one who gets the natural rudraksha has no fear of untimely death and misfortune. It gives peace of mind to the wearer and takes all his sins. It gives eternal bliss to the wearer and moksha after death. At the time of wearing rudraksha one should chant any of these two mantras - "OM NAMAH SHIVAY" "OM HREEM NAMAH"