Human Understanding (Locke) page 86 (12)

Locke touches on the significance between the mind and the body when he says "If, then, external objects be not united to our minds when they produce ideas in it, and yet we perceive these original qualities in such of them as singly fall under our senses, it is evident that some motion must be thence continued by our nerves or animal spirits, by some parts of our bodies, to the brain or the seat of sensation, there to produce in our minds the particular ideas we have of them." What I'm getting is that although everything outside of our minds is in no way connected we build an understanding in our minds by using our "senses" which are an extension of our bodies.