Simplify the following text for a Grade 9 native English-speaking person.
Original: 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 .
Simplified: At first , these readings were about the physical health of the person ( `` physical readings '' ) . Later , there were readings on `` past lives '' , `` business advice '' , `` dream interpretation '' , and also `` mental or spiritual health '' .