How many of us would be able to overcome our desires and resist the temptation of sin? How many of us even lower our gaze when we look upon something that we are not supposed to? The real prisoner is the one whose heart has been kept away from remembering his Lord, and the real captive is the one who has been captivated by his whims and desires.
It is strange that a person may find it easy to protect himself from: eating Haraam, oppression and injustice, adultery, theft, drinking khamr (alcoholic drinks), and from unlawful looking, but it is hard for him to restrain the movement of his tongue. How often do we see people who are very cautious about falling into shameful deeds or injustice, but their tongue lashes against the living and the dead and they don't mind it?
Perpetually is the servant either the recipient of a blessing from Allaah, in which case he is need of gratitude; or he is the perpetrator of sin, in which case he is in need of repentance; he is always moving from one blessing to another and is always is in need of repentance.
Among the principles of the Ahlus Sunnah wal Jama'ah lie the attitude of peace and purity of their heart and tongue towards the Sahaba(Companions) of the Prophet (saw).