Ye Tian Yun's dilemma was whether he should follow System's advice or find a way on his own. However, after thinking and understanding that he clearly has no choice here. He had to let everything up to fate.
But then, he felt how ridiculous this thought was. Isn't his main aim not to let fate control his life, but rather it should be him who decides his own fate?
Taking a deep breath, he reassessed his situation. His aim is to kill Xiao Ming and take the Token of Fate. He knows where he can kill Xiao Ming, but he doesn't know whether Xiao Ming has encountered the Token Of Fate.