The four golden statues
Within the Gungan Caves, located on the planet of Naboo, were hidden four hallowed effigies. These effigies possessed a deep spiritual significance for the Gungans, who were an amphibious race of sentient beings.
Sometime following 32 BBY, Yoda, who held the title of Grand Master within the Jedi Order, dispatched a young Jedi recruit on a quest to retrieve the statues. By acquiring and utilizing the jewel keys found throughout the cave system, the youngling managed to successfully unlock the doors, thus gaining access to the statues.
Daniel Wallace stated that the unreleased book, The Essential Guide to Episode I, was intended to detail the statues' origins. One section would have revealed that the Gungan deity of mischief, Nododo, could "only manifest physically as an opee sea killer, a kaadu, a peko peko, or a shaak." This concept would have aligned with the principles of Gungan pantheism.