Summary of Sunni concepts A healthy heart does not mean dullness and heedlessness A sound heart does not mean ignorance of evil and its people Do not deceive them But he has a good heart He knows evil and yearns for it He knows evil people and does not deceive them As narrated on the authority of the Commander of the Faithful Omar bin Al-Khattab, may God be pleased with him He said I am not a fool and I am not deceived by anyone The mean one is the mean one Omar, may God be pleased with him, was too wise to be deceived Too afraid to be deceived The difference is between soundness of heart and foolishness and heedlessness That the health of the heart be Not wanting evil after knowing it For the safety of those who know and know about it As for stupidity and negligence They are ignorance and lack of knowledge This is not praiseworthy, but rather a deficiency Perfection is when the heart knows evil and is free from its will