"The body is an instrument, the mind its function, the witness and reward of its operation"

In this quote, George Santayana describes the relationship in between the mind and body, specifying that the body is like an instrument, while the mind acts as its function. This suggests that the body is utilized to carry out physical tasks, and without the mind, it would not be capable of doing so. Nevertheless, the mind functions as the driving force behind the body's actions, and through this observation, the mind becomes the witness to its own operation. The mind witnesses the actions carried out by the body and for that reason acts as a reward for successful or effective tasks. The quote highlights the interconnectedness in between the mind and body and emphasizes the significance of a healthy balance between the two.