Prehnite is considered a stone of unconditional love and the crystal to heal the healer. It enhances precognition and inner knowing. 
This calming green stone is believed to be useful in strengthening bones, teeth, nails, and alleviating high stress levels.
Prehnite is considered a "stone of dreaming"; it is believed to increase the power of the dream state, strengthen lucid dreaming and promote communication with other planes of existence. It is also considered a "stone of prophecy," with long use by indigenous peoples of South Africa.
Prehnite aids in cooling and grounding excessive anger or nervous energy, encouraging a sense of peace and calm.