In The Name of Allaah, The Most Merciful The Bestower of Mercy
There is a soul within a person, without which he will not be alive. Had it not been that a soul was inside his body, he would not have been alive.
And he will not be able to describe the soul if it were said to him: ‘’what is this soul in connection to yourself; why is it that you become a corpse when it is removed from you and when it remains you are a human being (able) to reason, understand and perceive? He would have sat, reflect and contemplate and will never be able to describe it; even though it is close to him and by his side, he will be unable to perceive it. Therefore, how can he attempt to describe The Lord (Allaah) with an affair that He (Allaah) has not described Himself with!?
[Source: Al-Ma’wiyyah Min Sharh Al-Aqeedah Al-Waasitiyyah Lil-Allaamah Muhammad Bin Saaleh Al-Uthaymeen: page: 12]