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 "Gon," meaning earth or ground. Just as the earth holds all the basic elements of life, this form incorporates all the basic techniques of taekwondo. Just as the earth is the foundation for everything else, this form serves as the foundation for learning the upcoming Black Belt forms. (See the article Taegeuk for additional detail regarding the symbolism of this form.) Trivia: