Human Understanding (Locke) page 87 (15)

Locke sounds a lot like Descartes in this paragraph where he states "...the ideas of primary qualities of bodies are resemblances of them, and their patterns do really exist in the bodies themselves...They are, in the bodies we denominate from them, only a power to produce those sensations in us..." Descartes also said something along those lines where he stated that what we assume we are learning we actually know and in fact are deriving these new experiences from our forgotten knowledge. This has something to do with the mind and body where our bodies already know what types of sensations we will feel given the circumstances and our minds only have to remind us of something we have forgotten. Its all very confusing but that's kind of where I stand with this paragraph. Any suggestions?