Who am I if my knowledge of right and wrong comes elsewhere?

This is an odd question that popped into my mind a while ago. Where does freedom of thought and expression and personal choice come in where one believes that one can enter a state of mind which dictates right from wrong?

I think however that this is an immature view of something I do not yet understand. Most of the processes around achieving enlightenment etc. seem to be about clearing out the old impure (for want of a better word) thoughts so that one can think clearly from ones core/true being. Thus, one is less influenced by fear and adverse experiences of the past and one can observe now with clear eyes. In such a state I imagine it is quite obvious what must or should be done - its only fear and self delusion that hides this or prevents us from taking that path.

Could one interpretation of the tao in this context be used to mean that which is our true being? hmm...