there are references to broken pots, and even marred pots...Jeremiah, Psalms, etc., that give clues to the nature of a good vessel, that can be related to our understanding, or the way we take things in
Whenever a clay pot he was working on was ruined, he would rework it into a new clay pot the way he wanted to make it.
which are reflected in a believer having a spiritual breakdown, "being emptied." Ignore all of the "wonderfully flawed" hits you might get searching this concept, or at least take them with a grain of salt imo; "earthen vessel" relates that symbology just fine, jars made of clay. The analogy of "wonderfully flawed vessels" is crap, and if you are a cracked vessel, you will keep getting emptied until you grasp how to become an "uncracked pot."