5163. 'Of the chief of the cupbearers, and the head of the chief of the bakers' means regarding the sensory powers subject to both parts, the understanding part and the will part. This is clear from the representation of 'the cupbearer' as the sensory power subject to the understanding part, dealt with in 5077, 5082; and from the representation of 'the baker' as the sensory power subject to the will part, dealt with in 5078, 5082.