It has been said that piety has a ruling on secrets and souls, but this is not true of legitimate piety, because doubts about meanings, knowledge, and secrets are impossible for those who know, but rather doubts are in the theoretical sciences obtained with rational evidence, so those must be pious in intellectual consideration in order to rid it of forbidden consideration, such as looking into the self. And they free him from doubt, such as looking at God or reputation, which is hidden from some .