There are no successes and failures in life, only achievements - stepping stones.
The mind is acquired "human nature". The conscience is inherent "spiritual nature".
In the spiritual search doubt is beneficial, a closed mind is not. Doubt used wisely assists enlightenment; a closed mind assists ignorance.
That we do not comprehend or accept something does not invalidate its truth.
The purpose of human life is the dissolution of the soul and the revelation of the Spirit.
If we cut open the bud of a beautiful rose in order to see how it is 'packed' and what it is going to look like, what sort of a bloom will we get?