Sun Wukong had come to meditate in seclusion!
Unlike others, Sun Wukong, being a Chaos Battle Body, found the best way to cultivate was to engage in life-and-death battles with enemies.
But how easily could one find a life-and-death battle? It required an opponent with strength equal to or greater than Sun Wukong's to stimulate the potential within him, to absorb enough battle qi, and ultimately prove the Tao with strength.
"Proving the Tao with strength" meant, ultimately, to prove the Tao with combat power. Combat power is accumulated through endless battle qi, supplemented by experience from a thousand, ten thousand battles, and finally breaking through one's own limits in a single fell swoop to become a Saint!