Dua seeking forgiveness and repentance — context

He also said: ‘verily my heart becomes preoccupied, and verily I seek Allah’s forgiveness a hundred times a day.’ preoccupied: i.e. in a state of ‘forgetfulness’. The Prophet always used to increase in his remembrance of his Lord, in attaining a nearness to Allah and having consciousness of Allah to the extent that if this intensity lessened in anyway, he would regard it as a sin and would then race to seek forgiveness from Allah.