Answer:
Wandering and unpredictable
Explanation:
Example of personal pronouns:
Personal: I, You, He, We, You and Them (with their female).
Of possessives: mine, yours, his (with its feminine and plural)
Demonstrative: this, that, that (with its feminine and plural)
Undefined: someone, nobody, anyone.
Relative: what, what, who, whose, when.
i dont think there is any reason. you might find that the author has the same themes that he/she likes to write about but idk i think you need to read the book