Plato's view of the mind

Chapter 8 endnote 29, from How Emotions are Made: The Secret Life of the Brain by Lisa Feldman Barrett.
Some context is:

In Ancient Greece, Plato divided the human mind into three types of essences: rational thoughts, passions (which today we would call emotions), and appetites like hunger and sex drive. Rational thought was in charge, controlling the passions and appetites, an arrangement that Plato described as a charioteer wrangling two winged horses. [...] Plato called his model the tripartite soul.

Plato saw the mind and soul as identical -- the soul animated the body. He did separated the physical from the spiritual, however, but not in the same way as writers like Descartes later would. Both the body and the soul have their origins in nature, but the body (as part of the physical world) dies, whereas the soul (which contains both emotion and rationality) is immortal. So, Plato did not equate rationality only with the spiritual and emotions solely with the physical world, like Descartes.