Rudraksha.
In Hindu iconography, Shiva is often depicted with beads Rudraksha on the neck and arms, and the tree itself Saivites compared with the "Wish Tree", which gives knowledge, devotion, mystical forces, and health and promotes the implementation of all earthly desires: to achieve happiness, wealth, peace, comfort and good reputation. Shaivites believe that the man who wears Rudraksha gets to "reward" (or "pulls") the religious knowledge and wisdom, long life and a special blessing of Shiva. Rudraksha is used in traditional Indian medicine: According to Ayurveda, wearing necklaces, beads and bracelet on the body good for the heart and nervous system, reduces stress, anxiety, depression, pain, pressure and improves concentration, protects against "evil eye", the negative impact and obstruction by some planets. Wearing Rudraksha slows aging. Rudraksha beads work on different levels: physical, emotional, planetary, karmic. Rudraksha protects a person, and that belief comes from the ancient times.