the shaikh identifies himself mentally with the state of perfection he wishes to communicate. When he has effected this identification, he takes off the mantle he is wearing at the moment of achieving this spiritual state, and puts it on the disciple
Corbin presents the Sufi investiture rite in which the mantle functions as the physical medium for transmitting an achieved inner spiritual state from master to disciple, making the garment a vessel of theophanic communication.
, Creative Imagination in the Sufism of Ibn Arabi, 1969thesis