• Good Morals as a reflection of an inner state of being
• Hypocrisy as a sign of inconsistency between the interior and exterior
• The importance of the soul in Islam
• Finding a balance between excessiveness and abandonment
• Difference between hypocrisy and practicing what you are not (good character) for the sake of improvement
Reference: Mukhtasar Minhaj Al-Qasidin by ibn Qudamah