Do not allow your heart to take pleasure with the praises of people, nor be saddened by their condemnation.
Al-GhazaliTo completely trust in Allah is to be like a child who knows deeply that even if he does not call for the mother, the mother is totally aware of his condition and is looking after him.
Al-GhazaliRemember it is the heart and not the body, which strives to draw near to God. By heart I do not mean the flesh perceived by the senses, but that secret thing which is sometimes expressed by spirit, and sometimes by soul.
Al-GhazaliWhen you have a bad suspicion about a Muslim in your heart, you should increase your consideration toward him and make dua for him. This way you will infuriate Satan and will be able to drive him away. Because of this, Satan will be reluctant to put evil thoughts into your heart, afraid that you would increase your consideration towards your brother and will make dua for him again.
Al-Ghazali