The 8 trigrams (“Ba Gua” / oracle symbols) form the basis of the ancient Chinese “I Ching” (Book of Changes). They consist of 3 broken or solid lines, from which 8 combinations can be formed. These 8 characters represent the following elements in nature:
Fire, earth, lake, sky, water, mountain, thunder, wind
The Yin Yang symbol is a very old Chinese symbol, the light part stands for Yang, sky, the dark part stands for Yin, earth. Both forces are equal and must be in balance.