Why can't fortune-telling tell a practitioner's life?

The original fortune-telling is the I Ching, I Ching is the ancient summary of the verification of experience, there is a certain reference value, and can not support the control of things in the development of change, the cultivation of people they are certainly not allowed, the reason is that the cultivation of people are the existence of the "first" cultivation of the foundation, the spirit of the edge to be a lot higher than the average person, coupled with the cultivator cultivation there are a thousand variations, they certainly do not count accurately!