Green Prehnite is said to be a very calming stone and has this effect on you and also your environment. It is also thought to help you to connect to beings on the higher spiritual planes, and enhance spiritual growth. Prehnite is believed to help you to be prepared, as it enhances precognition... or prior knowledge of an event... and the gift of prophecy. It is said to be healing to the heart chakra and it was known in the past as a stone of magic. Prehnite is believed to connect you to Archangel Raphael.