What is the value of your Iman (faith) if you can't perceive the reality of this world through its light?
Instill Tawheed (belief in the Oneness of Allah) deep within your heart, etch it into your being, then cast your gaze around... Only then will you truly grasp the true value of all things!
The sound heart is understood to be free of character defects and spiritual blemishes. This “heart” is actually the spiritual heart and not the physical organ per se, although in Islamic tradition the spiritual heart is centered in the physical. One of the extraordinary aspects of the modern era is that we are discovering aspects about the heart unknown in previous times, although there were remarkable insights in ancient traditions. For instance, according to traditional Chinese medicine, the heart houses what is known as shen, which is spirit. The Chinese characters for thinking, thought, love, the intention to listen, and virtue all contain the ideogram for the heart. In nearly every culture in the world, people use metaphors that directly or indirectly allude to the heart. We call certain types of people “hard-hearted,” usually because they show no mercy and kindness. Likewise, people are said to have “cold hearts” and others yet who are “warm-hearted.” We speak of people as wearing their “hearts on their sleeves” because they do not (or cannot) conceal their emotions from others. When someone’s words or actions penetrate our souls and affect us profoundly, we say that this person “touched my heart“ or “touched the core of my being.” The Arabic equivalent for the English word core (which originally in Latin meant heart) is known as lubb, which also refers to the heart, as well as the intellect and the essence of something.
— Purification of the Heart: Signs, Symptoms and Cures of the Spiritual Diseases of the Heart, by Hamza Yusuf
Attributes of good character by Shaykh Uthman bin Uthman bin Salih (1754-1817) from "The Book of Distinction" (Kitab al-tafriqa), translated by Muhammad Shareef
Incursions of Iblis by Shaykh Uthman bin Uthman bin Salih (1754-1817) from "The Book of Distinction" (Kitab al-tafriqa), translated by Muhammad Shareef
Fear and hope (khawf and raja') by Shaykh Uthman bin Uthman bin Salih (1754-1817) in “The Sciences of Behavior” translated by A’isha Abdarrahman Bewley
Contentment (rida) with the decree of Allah (swt) by Shaykh Uthman bin Uthman bin Salih (1754-1817) in “The Sciences of Behavior” translated by A’isha Abdarrahman Bewley
Purifying the heart from envy (hasad) by Shaykh Uthman bin Uthman bin Salih (1754-1817) in “The Sciences of Behavior” translated by A’isha Abdarrahman Bewley
Purifying the heart from false hope (amal) by Shaykh Uthman bin Uthman bin Salih (1754-1817) in “The Sciences of Behavior” translated by A’isha Abdarrahman Bewley
Purifying the heart from conceit ('ujb) by Shaykh Uthman bin Uthman bin Salih (1754-1817) in "The Sciences of Behavior" translated by A’isha Abdarrahman Bewley
A small nation once found itself faced with the same dramatic choice: to bow its head, or to hold it proudly aloft—to be slaves, or to remain free people. The poet of that nation responded with these famous words: I swear to God Almighty that we shall not be slaves.
Alija Izetbegović, Bosnian lawyer, author and first president of Bosnia and Herzegovina