Waiting for a light to come on

Have you ever not been able to have something for a period of time? Have you ever imagined what it was like to have that again? You can conceive of it, and imagine an almost exact physical replica of it, but it's never actually as close as the real thing. You can picture its shape, and texture, and what it feels like to have it again. And yet...it seems so far away. But you hold on to your mental representations, and your pseudo-physical constructions, because that's what can get you through not having it. Oh, but once you finally do have that back in your possession...all of the mental representations are shed, the constructions destroyed, and the only thing on your mind is what you have yet again. It's a nice feeling.