How to preserve memory in clay?

Memory. How ethereal our memories tend to be? They vanish into everyday routine effortlessly, leaving no trace of themselves in our exhausted minds... Trying to preserve a memory in clay? Insane, you must say. You are right. Dipping old granny's crochet doilies in liquid porcelain and then firing them to the point of vitrification. Weird you say. You are right. But that's what I do :-)