Ego

 Ego is nowhere to be found within the organism. Nor is it an external factor.

It is our fearful hold on things, people and events. 

Our great disdain for the unknown. Great disregard for the present.

 

In whatsoever one does or feels with ego one can be 'accurate' but never be 'right'. One can be 'sure' but never deeply 'calm'. One can even be 'clear' but never innocent, 'pure'.