Open Mind strenghtens the intuition and opens the third eye. It helps you to make your thoughts reality and makes you more decisive. You get the strength to actually carry out the plans you have. It is calming and may help relieve high blood pressure.
It also helps you when you are overly sensitive to outside influences, but not when you are already too 'open'. In that case you'd be better off with something that protects as well as calms.