OK, I made a few comments earlier, but perhaps as one who in fact dabbles in the clay arts, as well as photography (and occasionally pen&ink or watercolor), I'll say some more.
Regardless of the media:
a) In many cases I'm not really sure why I do it in the first place, and in general (for me) it's a rather intuitive process. Sometimes with clay (not always), it is in fact making a functional piece for use here or as a gift. Mayhaps that threatens to drag us into "what is art?" (Ummm - sorry!)
b) In just about all cases, when I actually begin the physical process, I am pursuing some sort of "vision." Maybe I'm visualizing the finished work -- or maybe I want to "do something with that texture/those shadows/that interplay of shapes. (Or occasionally I just want a flower pot with interesting glaze for that houseplant that's gotten too big for what it's in!)
c) Many times what I do is perhaps mostly about experimenting and personal challenge -- I'm thinking of a < .*.*.*> -- can I make one; if an image, can I use what I know to make it happen. Do I think my stuff will be in museums in 2315 -- No. Do I care -- No! Sometimes I may be looking to stretch a personal boundary, other times I may want to do what I did before -- but better.
Am I aware of "rules" -- Yes. Do I follow them religiously, no (I don't even follow religion religiously!) Do I use any technology I have access to that might help me get what I want -- Yes!
Am I having fun? Yes!
(And that's all that matters. :munch: )
{Can't seem to find that animated .GIF of the guy beating the comatose equine ....}