Part 1
Psychological resistance is just a strong, painful sensation. (It is) a blind force of unconscious rejection, the life-blood of a negative nature that always -- and only -- appears whenever life fails to affirm one of its dark demands.
Part 2
Trying to change any unwanted moment in your life -- without first changing that level of consciousness (in you) that doesn't want it -- is like trying to make yourself look better in the mirror by putting makeup on your reflection!