Why do Thai monks wear orange robes?

I once asked my master about the meaning of the orange color that we Thai Buddhist monks wear because this has become the most frequently asked question that I’ve got from traveling to 70 countries. I feel that his answer is pretty cool and unique so I’d like to share with you here. Orange is the color dawned by Theravada Buddhist monks especially in Thailand, because the orange robe is the symbol of the flame that radiates light.