Hume soul

Hume asserts, that the soul, as far as we can conceive it, is nothing but a system, or train of different perceptions, those of heat and cold, love and anger, thoughts and sensations; all united together, but without any perfect simplicity or identity. Descartes maintained that thought is the essence of the mind. Hume says this is unintelligible since everything is particular, and therefore it must be our several perceptions that compose the mind. The mind is not a substance in which perceptions inhere. We have no idea of substance of any kind, since we have no impression of any substance eithe material or spiritual. We know nothing but particular qualities and perceptions. As our idea of any body, a peach, for instance, is only that of a particular taste, color, figure, size. So our idea of any mind is only that of particular perceptions, without the notion of anything we call substance, either simple or compound.
I think Hume is describing the parts of the mind and body as the whole thing. I think Descartes argues that the sum of the parts creates the whole mind, and the essence of the mind is thought because it takes the perceptions from the parts and creates other ideas which are real. But Hume, using the parts instead of the whole, sees the perceptions as real instead of the ideas or the reason the senses perceived what they did.