In addition to the fountain of youth, you will encounter four figures at the entrance of every Buddhist temple in Korea. These challengers stand before at the entrance into the halls of the holy temple.
Meant to represent the challenges of live that you will encounter prior to nirvana, these figures hold a sword, a palace, and a snake – all representing different challenges. The final figure plays a tune for you as you have survived the three encounters and make it into the entrance of the temple and therefore nirvana.
Vive ut Vivas 
Interesting….wonder what challenges the snake, sword & palace represent….