According to the astrologers, Iolite or kaka neeli has healing properties . It activates the Crown Chakra and helps the wearer to gain control over the bad addictions and negative thoughts. Therefore, Nili gemstone benefits hugely to the individuals addicted to smoking, drinking or drug abuse etc. It is a Gemstone that is used in Insomnia. It is a positive impact on the sleep cycle, biorhythm and improves the quality of rest and sleep. It also aids in de-addiction and alcoholism and removes toxins from key energy centres of the body. It also helps in regeneration of the liver.