Mind is the Soul speaking and Conscience is the Spirit speaking.
That we do not comprehend or accept something does not invalidate its truth.
As the mind shrinks at the will of the initiate, thought flows in to fill the spaces so created.
We are all Spirit experiencing a process set up to facilitate its (each Spirit's) understanding of its true identity and, through that understanding, to revert to its pristine state.
The mind is acquired "human nature". The conscience is inherent "spiritual nature".
There are no successes and failures in life, only achievements - stepping stones.