Lua is a Hawaiian art which incorporated elements of jujutsu, judo, karate, and aikdo. Knowledge of anatomy and nerve centers was of vital importance to the art. This art was taught only to a select few and what is known about it has been transmitted by word of mouth. Lua was only taught to those who were able to control their temper and was never used except in defense of a life. Today, Lua is nearly a lost art, with no descriptions about actual techniques. It's decline is attributed to the influence of Christian missionaries. Now, only a handful of practioners are the only ones keeping this nearly extinct art alive.