What is the effect of faith on a person's life?

Faith in a Muslim's life leads to happiness and tranquility (An-Nahl: 97), increased guidance and success (Maryam: 76), and empowerment and security on Earth (An-Nur: 55). It is a motivator for good deeds and avoiding sins, a cause for security in this world and the Hereafter (Al-An'am: 82, Taha: 112), and a source of steadfastness in the face of trials (Ibrahim: 27, Al-Ahzab: 22). It also makes the believer pure, never impure, and protects his blood, wealth, and honor.