3. Maintenance of a Healthy Cardiovascular System. Regular chocolate consumption is also associated with improved markers for cardiovascular health.[4] Notably, the polyphenols in cacao increase HDL cholesterol (the good kind), which in turns leads to decreased oxidized LDL cholesterol (the bad kind)[5-6].
Symbolic value. Historically, the dragon was associated with the Emperor of China and used a symbol to represent imperial power. The founder of Han dynasty Liu Bang claimed that he was conceived after his mother dreamt of a dragon.
It depends on the ancient culture you're referring to. Ancient China: It was believed that a dragon was eating the Sun to symbolise that famine and disease was coming. The Ancient Chinese who believed this would form defences around their land to ward off the dragon, preventing famine and disease from affecting them.