Where as gold is the metal of the sun, silver is the metal of the moon. Like the moon and water, silver is reflective and used to mirror the soul bringing people calm and balance. Silver is used to 'draw down the moon' during lunar ceremonies, giving the wearer use of the moons energy and protecting them from negativity.

Silver's connection to the spiritual life is mostly seen in traditional cultures where people live in union and deep respect for the earth. For example, the Tibetans spiritual silver jewelry is often combined with gemstones and crystals which then resonate their healing vibrations more strongly. Another aspect of the silver natural healing belief is that wearing this jewelry brings the wearer more in tune with the vibrations and flow of the universe. It is the metal of emotions, love and healing. Silver's properties are strongest during the new and full moon.

Because Silver has conductive abilities, New Age healers believe that it can conduct the body's energy, and it can remove negative energy from the body by channeling the positive energy of other minerals into a patient. 
Silver is said to be the mirror of the soul. Silver is believed to benefit circulation, help lungs and throat, and detoxify the blood, to aid in the treatment of degenerative brain diseases, balancing of hormones and chemicals and improvement of nerve impulse transmission. 
They also use it for treating hepatitis and detoxifying the body.
Throughout the ages, silver jewelry has been associated with magical powers; believed to promote healing, bring good luck and for warding off evil spirits to the wearer. 
While these beliefs are not part of mainstream thinking today, some people still hold them true. 
Also said to help the body naturally correct hormonal and/or chemical imbalances, and to help the brain work easier owing to silver improving the transmission of nerve impulses. Silver has germicidal effects and kills many lower organisms effectively without harm to higher animals.
In olden days, people used silver to de-contaminate water because it kills germs.
It's widely accepted that silver is a good natural antibiotic; it's even used in a lot of bandaids.
Silver is considered as an antibacterial — but it might do more. Scientists are now testing silver on diseases like malaria and leprosy with encouraging results.
Silver is a major conductor and communicator. Aids speech and public speaking eloquence. Enhances patience and perseverance. Silver has the ability to energize other stones during the new and full moons. Draws negative energy out from the body and replaces it with positive energy.