How does Katherine Neville use imagery in The Eight?

Imagery:

"Perhaps it was the tension of the situation, but it appeared as the game progressed that the two players moved their pieces with a force and precision that transcended a mere game, as if another, an invisible hand, hovered above the board. At times it even seemed as if the very pieces carried out the moves of their own accord." p. 12.

"[Music] has a force of its own that few would deny. It can tranquilize a savage beast or move a placid man to charge into battle ... Music, you see, has a logic of its own. It is similar to mathematical logic, but in some ways different. For music does not merely communicate with our minds, but in fact changes our thought in some imperceptible fashion." Bach to Euler and Philidor, p. 165-166.