It is not that it considers these traces, since it has no knowledge of them; nor that these traces include these ideas, for they have no relation to them; nor, finally, that the soul receives its ideas from these traces: for, as we shall explain in the third book, it is inconceivable that the mind receive anything from the body and become more enlightened by turning toward it, as these philosophers claim who would have it that it is by transformation to fantasms, or brain traces, per comersionem ad phantasmata, that the mind perceives all things.