Each taegeuk form is represented by a trigram (such as ☲); trigrams are divination symbols derived from the I Ching. The trigram for Taegeuk Sam Jang represents the concept of "Ree" (also spelled Ri). Ree represents heat and brightness, like a fire. The idea is that this form should crackle like a fire: rapidly fluid throughout, with bursts of power. For example, the punches at steps 8 and 10 "burst" forward from their prior stances, like the crackle and pop of a fire. The concept of Ree also symbolizes that the form should be practiced with burning enthusiasm and passion. (See the article Taegeuk for additional detail regarding the symbolism of this form.)