The Festival of the Twin Gods represented a unique celebration observed by the Yuuzhan Vong. This special occasion paid tribute to Yun-Yammka, recognized as the Slayer, and Yun-Harla, known as the Trickster. Quite unusually playful for the typically solemn Yuuzhan Vong, this holiday involved a relaxation of the established regulations. To illustrate, young crechlings engaged in pranks directed at their seniors, without any apprehension of punishment, and adult Yuuzhan Vong frequently shared confidential information, even between competing Domain factions.