1. Know about harm
2. What ways can be used to drive harm away
Certainly, man can have no better guidance than that which comes from the One Who had perfected everything, and the One who Has no deficiency in Himself and in His Attributes. The One Who is Ever-Living and Who does not die. There can be no One better than the One Who Has no need for anything; the One Who is rich; the Giver; the One who, after all, controls man's soul. Man is so poor to Him. He is Allah سبحانه و تعالى, the True and only God. Man can bring harm to himself if he seeks other than Allah سبحانه و تعالى for help. Allah سبحانه و تعالى is the One Who can help man drive away any harm for it cannot occur without His Will and His Power.