Ruby is believed to promote loving, nurturing, health, knowledge and wealth. It has been associated with improved energy and concentration, creativity, loyalty, honor and compassion. Ruby is thought to be protective of home, possessions and family. Ruby is said to stimulate heart chakra and bring spiritual wisdom while shielding against psychic attacks. Ruby promotes clear visualization and positive dreams. It stimulates the pineal gland, which is responsible for triggering melatonin production during the hours of darkness.