Sanctification and Conscience

It  is quite possible for a man to possess evidence of sanctification, who is temporarily destitute of joyful and rapturous emotions. But  it is not possible for a man to possess such evidence, who is destitute of a living, operative, and effective conscience. On no part of our nature does sanctification work greater effects than on the conscience.  It  may be said to give to it an intensity and multiplicity of existence; so that like the flaming sword of the cherubims, it turns every way and guards the tree of life.

— Religious Maxims XLIX.