" There is an inward and outward state in every human soul, with the inward being imān (the condition of the faith) and the outward being islām (the manifestation or practice of the faith). When the two come together inwardly and outwardly, the resulting balance is a truly beautiful human being, one generally called a muḥsin, one whose worship and character are excellent. "

― Hamza Yusuf , Purification of the Heart: Signs, Symptoms and Cures of the Spiritual Diseases of the Heart