When done well, they are very graceful to look at, reminding one of dance.
Forms have several purposes.
First, they teach power, balance, and coordination. Second, they help students get acquainted with the techniques they are expected know at each belt level. Third, they help students stay in touch with the philosophical and historical background of Taekwondo. Each form has a history behind it, and black belt forms especially try to convey a deeper meaning or idea. A demonstration of this form should convey the power and stability of mountains, expressed through wide stances and powerful blocks.