the mind was called mind and stone. god almighty said is there in that an oath for one with reason? because it restrains and bridles the tongue shapes it and makes it firm and restricts excess and restrains it from going to waste in the path of ignorance error and harm just as a camel is restrained and an orphan is restrained.
وإنما سمي العقل عقلا وحجرا، قال تعالى هل في ذلك قسم لذي حجر لأنه يزم اللسان ويخطمه، ويشكله ويربثه، ويقيد الفضل ويعقله عن أن يمضي فرطا في سبيل الجهل والخطأ والمضرة، كما يعقل البعير، ويحجر على اليتيم.