4-61 Muhammad ibn Musa ibn al-Mutawakkil narrated that Muhammad ibn Yahya al-Attar quoted Muhammad ibn Ahmad, on the authority of Durost, on the authority of Abil Asbaq that Aba Abdillah said, “The body is based on four things: the spirit, the mind; the blood and the self. Once the spirit departs the body, the mind shall follow it. Once the spirit sees something, it will be saved by the mind and maintained by the blood and the self.”