This aspect of Jeremiah was very interesting to me. At the beginning of the Book of Jeremiah he sees a staff and a caldron. I was very confused by this vision or if it is a vision or not. While reading a few articles on this subject i found a scholar who believes that it was not a vision. He thinks that during Jeremiah’s calling, he was in the temple. When God told him to look before him, he saw a staff and a caldron which were objects that he argues could be in the temple.

This idea seem to make sense to me. Also the idea that all his vision were not fiction but based on reality. If Jeremiah saw the staff of Aaron then the idea that he was supposed to lead the Israelites would be obvious.
These are just different way to understand visions of prophets