Dua means we request to Allah that Allah give me, if it is better in my rights and in my life.
Every dua is not answered in the positive, however righteous the supplicant may be, for Allah is Master, Knower, Seer, and has power over all things and is not controlled by our requests.
Our hearts must be pure and sincere and devoid of any grievance or resentment towards anyone when we make dua.
we must know what we are saying and our hearts must be filled with fear and hope, anxiety and restlessness, when we supplicate.
Allah will reward us if we read these duas with pure and sincere heart.