Anything we recognise as an idea already presumes a whole world of ideas. You can aim at a pure perception and it is easy to see that whatever you find will always be an idea of such a perception, but the ideal component will seem eliminable, like a fuzzy fringe around the real thing. If ideas seem to have that wispy or gaseous quality this is only because they are faded by-products of conception, they are down-stream of the kind of high energy ideas that frame a world by way of fundamental distinctions. If there is nothing behind or around a distinction, or a characterisation, no fulcrum point from which to experience the freedom of their act, then they will seem adamantine and irreversible. The deep structure of the world as understood by the idealist has this quality of lawlike self-subjection. To assume the freedom inherent in fundamental ideas remains an impossible possibility - this is absolute freedom but there is no one to wield it.