When Hearts Change

Sometimes the Shaykh banishes the novice both inwardly and outwardly, such that he drives him out of his house and shuts his door on him. Sometimes the Shaykh banishes the novice inwardly. This is more harmful to the novice for, in this case, the latter is not aware that he has been banished or that he deserves expulsion. This state of banishment will remain until the novice hearkens to his Shaykh: repentant, remorseful, meek and heartbroken.

Al-Suhrawardi then says about the same theme:
One of the students of Junayd asked the latter a question, but when Junayd answered, this student objected. Quoting a Qur'anic verse, Junayd said: But if you believe me not, go you apart from me! [44: 23]

Source : http://shadhiliteachings.com/