Mental and Spiritual Readings : 450 readings given These readings were often short and were Cayce 's favorite type of reading when not in his supposed trance state . The subject 's questions would then be given to Cayce , and Cayce would proceed with a reading . At first these readings dealt primarily with the physical health of the individual ( physical readings ) ; later readings on past lives , business advice , dream interpretation , and mental or spiritual health were also given .