None can deduct from the reckoning, or force what is fated

The above words were quoted by a Cui Zhouping to Liu Bei(Xuande) after the latter's first visit to locate Zhuge Liang(KongMing).

None can deduct from the reckoning, or force what is fated

A very thoughtful quote, in my opinion, but with different interpretations.

My way of interpretating this saying would be that no one knows what is coming to him, no one knows his future, but a person, who is fated to achieve great things, climb the mountains, sail the waterfalls, will get there through his own effort.

This is my interpretation of the saying.