Red Bamboo Coral Sterling Silver Earrings Coral is a substance believed to be endowed with mysterious sacred properties. It is a symbol of modesty, wisdom, happiness, and immortality. It is known to relieve spasms of intestines, sleeplessness, and bladder stones. Coral can reduce stress and fears, nervousness, depression, panic, and nightmares. Coral is used to attract success and wealth and strengthens foresight. Coral is good for meditation.