Locke II.III.--> book two chapter 3

ideas enter our minds using not one, but several sences. some sences are particularly made to recieve certain ideas. If a particular sence isn't working correctly, that idea will not be "viewed" or will have no way of being understood. each sence creats many different simple ideas for that sence. i believe Locke is saying that after an undisclosed amout of time we don't even recognize or have to think about the simple ideas any more because they have become so routine. But it is because of these countless simple ideas we can put together complex ideas.