Hessonite, a variety of grossularite garnet, is known for its healing effects and is associated with the malefic planet Rahu in Vedic astrology, which can lead to various mental and health issues. Wearing hessonite is believed to absorb positive energies, enhancing one's aura, concentration, and potentially alleviating disorders associated with weak Rahu. The gemstone should be worn on a silver ring on Saturday mornings after energizing it with specific rituals.