If the first inward thought is not warded off, it will generate a desire, then the desire will generate a wish, and the wish will generate an intention, and the intention will generate the action, and the action will result in ruin and divine wrath. So evil must be cut off at its root, which is when it is simply a thought that crosses the mind, from which all the other things follow on.
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-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-Ghazali