after a dinner of crisps and fizzy drinks i sink to the floor , such sugary delights might strive to keep me awake , but i have teetered on the edge of the deepest sleeps for too many hours , and my weariness will no longer be denied ... sunlight , curious sunlight bouncing around inside an empty crisp packet , exploring the places where the darkness hid from it not so long ago , but that silvery cavern is just made for the light , which bounces happily between every fold and crinkle .